Il y a 7 heures
ORACLE, Performances, PL/SQL, SQL, TUNING, Upgrade
Collected posts: Oracle, SQL, PL/SQL, Performance, Security...(More than 300 blogs)
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PlatoRepublic Nomos: The Governance Schema and Polis Constitution - Author: Eamonn J. McCormick Date of First Publication: August 6, 2026 Abstract This document discloses the architecture and database schema for PlatoRep...
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Menelaah Faktor Pendorong dan Popularitas Situs Slot Kamboja Gacor di Kalangan Pengguna - Menelaah Faktor Pendorong dan Popularitas Situs Slot Kamboja Gacor di Kalangan Pengguna Dunia digital dan industri hiburan interaktif terus menunjukkan d...Il y a 11 heures
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OCI Bastion Service: Zero-Trust SSH Access to Private Resources with Terraform - The traditional approach to accessing private compute resources is a jump box: a public-facing instance in a DMZ subnet that engineers SSH into first, then...Il y a 20 heures
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Tracing a Power BI DirectQuery Refresh in Oracle - In today's video I have demonstrated how Power BI can use DirectQuery to query an Oracle database and refresh reports without actually storing the data ...Il y a 1 jour
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Testing a Better System Prompt - I am using my local LLM using a mac book pro M5 64gb and running Ollama, open-webui via docker and the interface on my Windows laptop. I posted a blog rece...Il y a 1 jour
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Oracle Support : An Update - My last post was a rant about Oracle Support. As a result of that some folks from Oracle reached out for a meeting to discuss my experience. This was not...Il y a 1 jour
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Monitoring Oracle Database@Azure - Monitoring Oracle Database@Azure A layered observability model — native Azure Monitor integration, Log Analytics and KQL, Oracle Enterprise Manager and...Il y a 4 jours
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Que impacto tiene el que generemos un Datapump utilizando un método de encriptación por ejemplo nativa o externa, a la hora de comprimir el archivo con el respaldo respectivo.? - Hola gente, Que impacto tiene el que generemos un Datapump utilizando un método de encriptación por ejemplo nativa o externa, a la hora de comprimir el...
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Oracle 26ai new TERMINATE command For Recovery Catalog Upgrade - In previous database releases 19c,18c,12cR2 when you attempted to upgrade the recovery catalog through the command: UPGRADE CATALOG You might face a prob...Il y a 5 jours
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Compound Triggers: Are declarations in timing_point section allowed? - Hi, If I?m reading the documentation (picture of timing_point_section in https://docs.oracle.com/en/database/oracle/oracle-database/19/lnpls/CREATE-TRIGGER-...Il y a 6 jours
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Database Features – The Bullet Point Myth - I have a presentation that I’ve given from time to time over the years and it’s called the “bullet point myth”. The main thrust of the presentation is that...Il y a 1 semaine
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Database Features – The Bullet Point Myth - I have a presentation that I’ve given from time to time over the years and it’s called the “bullet point myth”. The main thrust of the presentation is that...Il y a 1 semaine
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Virtual DBA application – part 1 - Preamble I have recently been working on two quite interesting features call Agents skills and SQLcl Model Context Protocol (MCP) Server. Agents skills i...Il y a 1 semaine
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The Return of SQLcl’s SCRIPT Command - Introduction The script command was introduced with SQLcl 4.2. It is based on JSR 223, the Java Scripting API, and makes it possible to run JavaScript fr...Il y a 1 semaine
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Dealing with JSON serialization and how to convert JSON object strings back and forth - A simple reminder about how JSON PL/SQL methods deal with JSON values, it easy to get confused when you mix up JSON objects and their serialized counterp...Il y a 1 semaine
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Oracle Database 19c auf Windows: RU-Patch-Nummern - Nachdem ich letztens mal wieder einen Windows-Datenbank-Server patchen musste (kommt selten vor), gibt es die Liste mit den Patch-Nummern für Oracle 19c je...Il y a 2 semaines
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Storing & retrieving sensitive data for your CI/CD pipelines securely - On-premises edition. See below for a great article by Jeff Smith covering the other scenario where your database resides in Oracle Cloud. Secret management...Il y a 2 semaines
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2 ORDS REST API options for 26ai Database Vectors - Oracle REST Data Services (ORDS) provides a ton of features that easily enable AI Vector Search in your 26ai Oracle Database. Here's a quick overview of ...Il y a 2 semaines
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Football is not a database - To whom it may concern: And finally. Not every nation needs to be at the World Cup. Part of the magic was that getting there was almost as hard as winning ...Il y a 2 semaines
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Football is not a database - To whom it may concern: And finally. Not every nation needs to be at the World Cup. Part of the magic was that getting there was almost as hard as winning ...Il y a 2 semaines
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JOIN TO ONE and Star Schemas - Oracle’s new JOIN TO ONE syntax offers several benefits for queries in star schemas. Let’s take a look at some typical use cases involving facts and dimens...Il y a 2 semaines
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Introducing the Hyperscaler GTM Playbook - A vendor-neutral practitioner guide on cloud alliances, co-sell and marketplace – 16 articles covering everything from partner programs to private offers, ...
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Ten Years Later, I’m Back at AIOUG Yatra: See You in Bengaluru and Hyderabad - Ten years ago, I was part of the AIOUG OTN Yatra tour. This July, I’m back — Sangam AI Yatra 2026, Bengaluru on the 18th and Hyderabad on the 19th. It’s be...Il y a 3 semaines
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Protect Your Oracle Database from SQL Injection and Unauthorized Access with SQL Firewall - SQL injection and credential misuse remain serious threats to database security. Oracle SQL Firewall offers a practical way to defend against these risks...Il y a 4 semaines
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Using an LLM in a SELECT Loop - Introduction This post describes a way to use a Large Language Model (LLM) to investigate Oracle database problems. In this approach, the LLM repeatedly ge...Il y a 4 semaines
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Creating an Oracle 26ai database - Parameters and parameter-files. - TL;DR: The minimum amount of parameters for the init.ora when creating an Oracle 26ai database from scripts. Simple is better: I'll provide just the bare...
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Bosses Who Made a Difference, Part II - The Boss Who Said “Show Me” In a previous post, I talked about how much having the right boss has meant to me throughout my career, and nowhere did that tr...Il y a 5 semaines
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Savepoint Funny - Here’s an example that makes perfect sense if you know how Oracle handles data locking. It’s one that I thought I’d published years ago, but it’s not on th...Il y a 5 semaines
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Oracle Applications on Azure: Drivers, Connection Pools and SSL/TLS Troubleshooting - When application teams report intermittent Oracle connectivity issues on Azure, the database is often the... The post Oracle Applications on Azure: Drive...Il y a 1 mois
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Where to find ojdbc17_g.jar - I haven’t done much JDBC tracing yet, but recently for a Kerberos KCM + ANO case I wanted more traces. In the old doc, on google and myoraclesupport, you’l...Il y a 2 mois
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Logical IOs: why you should care - The recording. - Here is the recording of the LIO talk I had with Chris Saxon last week. Enjoy!! https://asktom.oracle.com/ords/r/tech/catalog/session-landing-page?p2_...Il y a 2 mois
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Using RMAN Backup Validation To Distinguish Between Read and Write Bottlenecks - Hello Friends, Easy way to determine whether the output device or input disk I/O is the bottleneck in a given backup job is to compare the time required to...Il y a 2 mois
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Physical Standby – the Ultimate Migration Tool - We attempted to find out if anyone else had used a physical standby to accomplish the following changes in our Oracle Architecture: AWS Instance Hardware C...Il y a 2 mois
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Oracle Standby FIX using RMAN Incremental Backup from Primary DB - When you don’t have an option other than doing incremental backup from Primary DB (when ARCH logs are gone from all places) below is the high-level DB...Il y a 2 mois
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Better Data Models (redux) - Successful AI relies on high-quality, well-understood data and its context. Emphasizing the importance of good data management, the author advocates for re...
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Single Server DFO - Another improvement similar to last post is Single Server DFO. While in previous post the serial work was done by the query coordinator, that activity c...
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Unlocking Apache Spark Performance: Three Open-Source Tools We Use at CERN - Apache Spark is incredibly powerful, but anyone who has worked with it long enough knows the feeling: *Why is this job suddenly slower today?* *Why are e...Il y a 2 mois
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Migrate/Move Data to Autonomous AI Database - Assume following scenario’s: For 1 above, Autonomous AI Database provides Database Cloning option. It is just few clicks and the job is done. For 2, there ...Il y a 2 mois
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Out of Place (OOP) Patching of Oracle Restart 26ai - Previous posts showed OOP for 19c and 21c Oracle restart. Things are even simpler with 26ai. The current patch level is crsctl query has releasepatch Orac...Il y a 3 mois
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The hypergraph optimizer is now available in MySQL 9.7 Community Edition - I have written a new post on the MySQL blog about the hypergraph optimizer, which is now available in MySQL 9.7 Community Edition. The post gives a high-le...Il y a 3 mois
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Most Common Oracle Wait Events - Every DBA knows how to read the Top 5 Timed Events section of an AWR report. The common ones — db file sequential read, log file sync, buffer busy waits — ...Il y a 3 mois
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Good Bye and Good Luck - June 27, 2007 was my first post and April 20, 2026 will be my last post. Be Healthy, Wealthy, and Wise !Il y a 3 mois
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Data Guard 26ai – #28: Fast-Start Failover Validation - FSFO validation in Oracle Data Guard 26ai: a single command to verify readiness, consistency, risk settings, and callout scripts across your configuratio...Il y a 3 mois
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SPM при использовании VPD/RLS - На примере нетипично долгого выполнения стандартного OEBS 12.2 запроса: — формальный источник проблем — выбор HASH JOIN XLA_TRANSACTION_ENTITIES@SEL$3 с ин...Il y a 4 mois
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Quarkus – trying out the “Argo CD Extension for Quarkus” (part 5) - In a series of previous articles, I covered a lot about the “Argo CD Extension for Quarkus”. In my previous article, I described how I continued with the...Il y a 4 mois
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Assertions for data integrity on a less-than-ideal data model - 25-30 years ago I worked a lot with the Danish developed ERP system called Concorde XAL. It ran on top of a database (choice of several, mostly I worked wi...
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NoCOUG Conference – 2/27/2026 - Well for the first time in a very long time I am posting something on my blog. I’m doing a keynote for the Northern California Oracle Users Group (NoCOUG)....Il y a 5 mois
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How to emulate LEFT JOIN FETCH using Record-based projections - Introduction In this article, I’m going to show you how to emulate a LEFT JOIN FETCH between two root entities without fetching the intermediate child en...Il y a 5 mois
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ERROR 1396 (HY000): Operation ALTER USER failed for 'Mysql'@'%' - This MySQL error — ERROR 1396 (HY000): Operation ALTER USER failed for 'Mysql'@'%' — means that MySQL cannot find the user 'Mysql'@'%' to alter, or the ...Il y a 5 mois
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CPU patching with golden images - With the CPU patches, it's a all exercise that we all repeat 4 times a year on the systems. We are patching the different software part of the Peoplesoft....Il y a 5 mois
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Exploring the production process of navigation buoys in indonesia - Indonesia’s navigation buoy production stands as a vital pillar supporting maritime safety across its vast archipelago. The country’s manufacturers blend t...Il y a 5 mois
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Aggregation Filters - Overview The FILTER clause is a nice addition to the SQL syntax in Oracle 26ai (23.26.1). It allows to restrict the rows considered by aggregate function...Il y a 6 mois
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Oracle Data Guard Role Change History - Oracle documentation lists oracle-data-guard-in-oracle-database-views. Having diagnostics pack purchased and available one may find information of role cha...Il y a 6 mois
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NMLS Test Questions Made Simple - 1) Tax Lien is an involuntary lien that is a non-consensual claim on one’s property as a collateral towards repayment of a debt and the rights can be giv...Il y a 6 mois
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Managing Ad Hoc PS/Queries in PeopleSoft - This post draws together all the recommendations for managing ad hoc user queries in PeopleSoft PS/Query. Some points relate to the database, some to the ...Il y a 7 mois
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Purchasing model - A SQL Server running in an Azure virtual machine (IaaS) is equivalent to an on-premises SQL Server. You'll notice that several features described for SQ...Il y a 7 mois
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Reflections on a year of biking for 2025 - Last year I wrote up a summary of my biking for 2024, and I thought I’d continue that nascent tradition by writing a similar post for 2025, so here it is. ...Il y a 7 mois
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Select AI Agents: Santa’s Workshop Runs on Oracle, Reindeer Health Copilot. And the wrap up. (6/6) - By Heli and Marko Helskyaho Last but definitely not least: Reindeer Health Copilot: Santa’s AI veterinarian on Duty 24/7. Reindeer … Continue reading →Il y a 7 mois
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Select AI Agents: Santa’s Workshop Runs on Oracle, Reindeer Health Copilot. And the wrap up. (6/6) - By Heli and Marko Helskyaho Last but definitely not least: Reindeer Health Copilot: Santa’s AI veterinarian on Duty 24/7. Reindeer … Continue reading →Il y a 7 mois
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Parsing RTSM(Real-Time SQL Monitor) XML Reports - Learn how to parse Oracle Real-Time SQL Monitoring (RTSM) XML reports using table SQL macros introduced in Oracle 19.16. This article shows how the updated...Il y a 7 mois
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PostgreSQL 18 : des IO asynchrones performantes ! - Le 25 septembre dernier, PostgreSQL sortait sa toute dernière version, PostgreSQL 18. Cette version apporte de nombreux correctifs mais aussi des nouve...Il y a 8 mois
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Add a Little Joy to your Buttons #JoelKallmanDay - Recently we were sitting outside at a café having a coffee and a slice of apple pie, something we do often. This is nothing remarkable, but when we orde...Il y a 9 mois
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Ideas as a precursor to Oracle APEX #JoelKallmanDay - It seems if I post only once a year, it's for Joel Kallman Day... Last year I hinted of a small side story to a remediation project that was upgrade the...
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GOLANG Pointer Functions - There are interesting behaviors when you start learning aboutIl y a 9 mois
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Multiple Ways How to Get Rid of the Oracle Database Optimizer Statistics Advisor AUTO_STATS_ADVISOR_TASK - There are multiple ways to avoid the vast amounts of data in the SYSAUX tablespace created by the AUTO_STATS_ADVISOR_TASK. This advisor runs during a maint...Il y a 11 mois
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Step 3: Apply Patch on GI & RDBMS (Oracle Exadata) - Step 3: Apply Patch on GI & RDBMS (Oracle Exadata) *Target:* SDN_Env Cluster (Repeat for other clusters) *Mode:* Patch two nodes at a time (rolling patch...Il y a 11 mois
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Slide Decks - Hello everyone! Just a quick note. I’ve removed all my slide decks from SlideShare. I found they were inserting ads into the slides and I didn’t sign up ...Il y a 1 an
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the link between the rising oil level and the DPF blockage - Many Asian diesel cars, including Toyotas, Subarus, and Kias, share similar DPF-related challenges. One common problem is* a rising oil level.* This hap...Il y a 1 an
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Blog has moved – saying Goodbye to E-Mail subscribers - Hi all, Some of you may have already noticed the new look and feel of my blog. This was enabled due to a blog migration away from WordPress.com to a privat...Il y a 1 an
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Two Years Into Retirement - It’s two years and a day since I fully retired. On the 1st July 2023 I changed my LinkedIn profile to indicate my new, permanent, non-working status. I can...Il y a 1 an
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Two Years Into Retirement - It’s two years and a day since I fully retired. On the 1st July 2023 I changed my LinkedIn profile to indicate my new, permanent, non-working status. I can...Il y a 1 an
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Optimising Journal Line Queries: 5. Conclusion - This is the last of five articles that examine the challenges posed by typical queries on the journal line table (PS_JRNL_LN). 1. Problem Statement ...Il y a 1 an
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SnowSQL config password needs to be enclosed in double quotes - Today I tested how to use snowsql to connect to SnowFlake. I put the connection credential in the config file. But I encountered the following error mess...Il y a 1 an
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Start a Pod in Kubernetes using curl - Recently I came across the issue that a customer needed to start a Pod without the kubectl or the oc command line tooling. Since the Kubernetes API is a re...Il y a 1 an
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SQL table macros 15: parameterized views revisited - In my previous post, I tried to use views and macros together as an equivalent to parameterized views. Unfortunately, my generic macro can’t handle bind va...Il y a 1 an
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Sitemap - Sitemap - All posts on this blog 1. SQL Introduction 2. SQL Update 3. SQL Delete 4. SQL / PLSQL Interview Questions 5. PLSQL Cursors 6. PLSQL Triggers 7. S...Il y a 1 an
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Reflections on Founder Mode - Paul Graham’s Founder Mode is an important piece, and you should read it if for no other reason that “founder mode” will surely enter the lexicon (and as G...Il y a 1 an
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Caveat on index compression advanced low - The first time I played with the ADVANCED LOW option of index compression I got burned. I’m still in the process of getting burned. I don’t have much info ...Il y a 2 ans
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Client-side database connection timeout insanity - Attributed to Einstein but considered a dubious association, the quote is something like “Insanity is doing the same thing over and over and expecting diff...Il y a 2 ans
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Modifying ORDS Jetty Parameters - Recently we were working on an issue that was occurring to developers in Oracle Application Express’s (APEX) Page Designer. When we would attempt to vali...Il y a 2 ans
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Pickleball & Longevity - Studien zufolge trägt die Trendsportart Pickleball in nahezu idealer Weise zur Langlebigkeit bei! Wer möchte nicht sein Leben bei guter Gesundheit um 10 Ja...Il y a 2 ans
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Difference Between OCI Load Balancer & Network Load Balancer by A-Team…. - So this is more of me putting this article for my own memory. Oracle’s A-Team(www.ateam-oracle.com) has put together probably the best article on the diffe...Il y a 2 ans
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AGI vs AI - One of my newsletter readers was asking me about the difference between “AGI” and “AI”. In one issue of my newsletter last year, I put it this way: Artific...Il y a 2 ans
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I Cannot Participate in the Genocide | I Quit Blogging on Oracle Products - Since Oracle declared its "*stand with Israel*", it puts me in a moral dilemma, in one hand my main intention of blogging was to share the knowledge with...Il y a 2 ans
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The converged Christmastree - With this year’s converged Christmas tree, we achieved a particularly special variety. It not only contains the Multifir Christmas tree (...) Der Beitrag...Il y a 2 ans
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The converged Christmastree - With this year’s converged Christmas tree, we achieved a particularly special variety. It not only contains the Multifir Christmas tree (...) Der Beitrag...Il y a 2 ans
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enq: TM - contention Wait Event , Cause, Related SQL queries, Possible Resolution - The "enq: TM - contention" wait event in Oracle indicates contention for a table-level lock. This contention occurs when multiple sessions are attempting t...Il y a 2 ans
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Best model from UK clients to set-up offshore development centre in India (IDC) - Introduction: Built to operate model generally is heard in the infrastructure industry, nowadays IT businesses are also constantly seeking innovative sol...Il y a 2 ans
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The End Of Richard Foote’s Oracle Blog (“Rock ‘n’ Roll Suicide”) - NOTE -THIS BLOG IS NO LONGER BEING MAINTAINED!!! (Content may no longer be up to date or accurate with current versions of Oracle) Of all my many Ora...
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SPM baseline and historical execution plans - I have often wondered why when we consult a past execution plan that is protected by an SPM baseline, there is no Note at the bottom of that execution plan...Il y a 3 ans
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SPM baseline and historical execution plans - I have often wondered why when we consult a past execution plan that is protected by an SPM baseline, there is no Note at the bottom of that execution plan...Il y a 3 ans
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GoodBye 2022, Hello 2023 - 2022 has been a peaceful and kind year both professionally and personally for me. I began the year as an AWS Data Lab Solution Architect, helping external ...Il y a 3 ans
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Sql2Odi - best practices for auto-generating your ETL content - I blogged a while ago about our Sql2Odi tool that converts SELECT (and WITH as well) statements into Oracle ODI Mappings. (Blog posts 1, 2 and 3.) Now th...Il y a 3 ans
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World Cup 2022 Challenge online! - For the last 16 years, with every big football tournament (World Cup and Euro Cup), we've launched an Oracle APEX app where you can predict the scores of...Il y a 3 ans
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New works by John Williams Waterhouse “discovered” - Is there an artist you liked, but would love to have seen more works by? I always liked John William Waterhouse and wished there were more pieces. You may ...Il y a 3 ans
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Use of packet capture and other advanced tools in network issues troubleshooting - Introduction In this post I’m sharing my recent experience troubleshooting a rather complex performance issue. The issue showed up during performance test...Il y a 3 ans
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VS Code: Removal of Trailing Spaces - The Windows\Linux keyboard shortcut for removing trailing spaces in VS Code is: Ctrl + K Ctrl + X On macOS it is: ⌘ + K ⌘ + X Alternatively you can access ...Il y a 3 ans
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“Oracle Database Security with practice solution” books - Finally I would like to say I made it. First time in Azerbaijan , I published “Oracle Database Security with practice solution” books. I strongly recommend...Il y a 4 ans
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Running High Scale Low Latency Database with Zero Data In Memory? - I was talking to one of my oldest database colleagues (and a very dear friend of mine). We were chatting about how key/value stores and databases are evo...Il y a 4 ans
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Puppy remembrance virtual goodbye session - Our dear friend Pieter left us unexpectedly in July, a lot of people couldn't say goodbye yet. Therefore we organise a virtual goodbye ceremony We wi...
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How can Oracle help with Zero-Trust Security Model? - *An overview of Zero Trust Security Architecture* Zero trust is an IT security approach to keeping sensitive data safe while complying with new privacy r...Il y a 4 ans
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Moving Databases from ASM to ZFS on Exadata - Exadata is the best database machine available to run every Oracle database workload. But many times, within Exadata proliferate a large number of test a...Il y a 5 ans
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Video: Updated Tour of Database Actions & JSON - Video tour and demonstration of our latest JSON interface in Database Actions (formally SQL Developer Web) for the Oracle Database. The post Video: Updat...Il y a 5 ans
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pgbouncer and slow server pool increase - This post is about an issue I ran into when trying to use pgbouncer in front of Yugabyte YSQL, the postgres layer yugabyte reuses for handling relational d...Il y a 5 ans
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Certification Tests – A Necessary Evil - Originally posted on Mike Gangler's Musings: In today’s database market, getting certified is becoming more of a requirement than previous years.?? The cur...
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Certification Tests – A Necessary Evil - Originally posted on Mike Gangler's Musings: In today’s database market, getting certified is becoming more of a requirement than previous years.?? The cur...
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Sending Push Notifications from Oracle Notification Service with Oracle Functions and Pushover - The Oracle Notification Service is an extraordinary service. I’ve blogged about it in the past (see the Complete Guide to the Oracle Notification Service...Il y a 5 ans
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Oracle Identity and Access Management 12c Upgrade Factory - Organizations want to reduce complexity and achieve more control across an increasingly complicated technology landscape. The dynamics and logistics are ...Il y a 5 ans
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Introducing Oracle Cloud Infrastructure Vulnerability Scanning Service - Oracle Cloud Infrastructure puts the security of critical workloads at the center of our cloud infrastructure. This modern public cloud is built with the...Il y a 5 ans
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Fusion Middleware Support Monthly Blog Index - March 2021 - Welcome to the Monthly Index for March 2021 The following provides quick links to recent Fusion Middleware Proactive Support Blog postings from over the ...Il y a 5 ans
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ANNOUNCING: Systems Engineering Forum - Modernizing Enterprise Infrastructure with Oracle ... - Oracle Systems Engineering is hosting a webinar on Oracle Solaris and SPARC systems in the North America time zone on April 13th, 2021. Join us live at 9...Il y a 5 ans
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ANNOUNCING: Systems Engineering Forum - Modernizing Enterprise Infrastructure with Oracle ... - Oracle Systems Engineering will be hosting a webinar on Oracle Solaris and SPARC systems in the North America time zone on April 13th, 2021. Join us live...Il y a 5 ans
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ANY_VALUE and FIRST/LAST (KEEP) - The FIRST and LAST (a.k.a. “KEEP”) aggregate functions are very useful when you want to order a row set by one column and return the value of another col...Il y a 5 ans
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Upcoming talks UTOUG, INSYNC, and Uzbekistan INHA University. - March and April are booking up fast. Getting real busy and loving life. Utah Oracle Users Group (UTOUG) March 17 – 18 Keynote: “Curves ahead: Emerging tech...Il y a 5 ans
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Oracle ODA 19.10 Will Support KVM for Hard Partitioning of Oracle Databases - Major announcement made by the ODA team last week that this release will be the last release to support 11.2.0.4. After this release, customers will hav...Il y a 5 ans
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Am I running from inside a (DBMS_SCHEDULER) Job? - I’ve talked about improving your code instrumentation in the past, in particular how to use conditional compilation for your extra logger calls. See Debugg...Il y a 5 ans
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Security - "WIn16 :Z:\ Module 02 Footprinting and Reconnaissance\Website Mirroring Tools\HTTrack Web Site Copier and double-click httrack_x64-3.49.2.exe to launch the...Il y a 5 ans
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How to solve ORA-19505: failed to identify file in RMAN? - Reason: Archive log is deleted from os level and catalog is not synchronised. Posted by Pavan DBA on January 18, 2011 DBA’s will feel bad when they got a...Il y a 5 ans
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ORA-65140: invalid common profile name - How to solve if you get an error “ORA-65140” while creating a profile on Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 . Let us see how we can ...Il y a 5 ans
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Read [PDF] Suits A Woman on Wall Street - *Download PDF Suits A Woman on Wall Street* *Download* PDF EPub Doc EBooks Rtf Mobipocket Kindle FREE UNLIMITED BOOKS, ALL IN ONE PLACE. FREE TO TRY FREE...
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Hardening Apache ZooKeeper security using zkpolicy - Apache ZooKeeper is an open-source server which enables highly reliable distributed coordination. Distributed applications can use it to maintain configu...Il y a 6 ans
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3 Benefits of Migrating to Oracle Linux Virtualization Manager (OLVM) - 3 Benefits of Migrating to Oracle Linux Virtualization Manager (OLVM) As Oracle VM inches ever closer to its 2021 end of support date, Oracle VM users have...Il y a 6 ans
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Advance Your Career with New 2020 Credentials - We’re excited to announce the release of many new 2020 certification exams. Being certified on the latest release ensures you stay current on Oracle te...Il y a 6 ans
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Unix - Automatically notifiy when disk space is running low - It's good to be forewarned when one of your volumes or diskspace is running low before it actually runs out (100% used). I have seen many databases hang wh...Il y a 6 ans
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Following Various Legal Action Regarding “Oracle Cloud Revenue” - As a courtesy, I would like to provide a copy of the latest legal document filed in an action being brought against Oracle leadership resulting from allege...Il y a 6 ans
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New Parallel Distribution Method For Direct Path Loads - Starting with version 12c Oracle obviously has introduced another parallel distribution method for direct path loads (applicable to INSERT APPEND and CTAS ...Il y a 6 ans
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SQL Puzzle - Calendar of Current Year - With this post, I want to share a SQL Puzzle to *Generate the Complete Calendar of Current Year*. As you can see in the desired output - Month names shoul...Il y a 6 ans
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Rankings for Logic Annual Championship for 2019 - You will find below the rankings for the Logic Annual Championship for 2019, held in February 2020 on the Oracle Dev Gym. The number next to the player's...
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ORA-12954 - I went to Techfest 2019 in Brighton. While I was there I saw a presentation by somebody from Pythian. He said that Oracle Database Express Edition is now v...Il y a 6 ans
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Invalid ODCIPARTINFOLIST on Upgrade - I have been working on upgrading Oracle 12.1.0.2 databases to Oracle 19.3 when I ran into a problem that took me quite awhile to figure out. I did a search...Il y a 6 ans
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INSERT … LOG ERRORS and SQL%ROWCOUNT - Oracle SQL has a really neat feature to log the rows that failed to be processed during DML statement (INSERT / UPDATE / DELETE / MERGE ). This is really g...Il y a 6 ans
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Exadata storage cell rolling restart caused datafile and redo log file header block corruptions - 24 hours passed – still at work. Struggling to start up the database which was corrupted during cell storage rolling restart procedure. And I’ve never seen...Il y a 6 ans
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Response to Make database simpler - I read an interesting and thought provoking blog this morning Make Oracle database simple again Much of is is common sense and is really best practise – n...Il y a 6 ans
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Getting an excel list of all Azure Virtual machines - Now i don't think i'm unique in getting frustrated that from some of the Azure portal screens there is no download as csv option or a more effective fi...
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Get toast chunk_id from the user table tuples or from the toast index thanks to pageinspect - Introduction TOAST stands for “The Oversized-Attribute Storage Technique” and allows to broke up large fields value into multiple physical rows (see the Po...Il y a 6 ans
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Get toast chunk_id from the user table tuples or from the toast index thanks to pageinspect - Introduction TOAST stands for “The Oversized-Attribute Storage Technique” and allows to broke up large fields value into multiple physical rows (see the Po...Il y a 6 ans
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PL/SQL & SQL Coding Guidelines Version 3.6 - PL/SQL & SQL Coding Guidelines Version 3.6Il y a 6 ans
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Truncate (or drop!) partition without disturbing global non partitioned indexes - The problem Typical problem with partition tables is partition pruning and problems with global non partitioned index on them. From the theory, if you tru...Il y a 6 ans
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Delphix XPP explained - This article was originally posted on the Delphix Support blog on 15-Nov 2015, but with the deprecation of the XPP feature with the new 6.0 release and hig...Il y a 6 ans
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My Presentations at Germany Oracle User Group Conference (DOAG2019) - Next week I will be presenting the two following topics at Germany Oracle User Group Conference (DOAG2019): Cloning Oracle EBS Database With Snapshot for D...Il y a 6 ans
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My Presentations at Germany Oracle User Group Conference (DOAG2019) - Next week I will be presenting the two following topics at Germany Oracle User Group Conference (DOAG2019): Cloning Oracle EBS Database With Snapshot for D...Il y a 6 ans
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Exadata X8M - World's Fastest Database Machine - Exadata X8M has launched during OOW 2019, and termed as world's fastest Database Machine. Let's walkthrough about new additions that has made X8M as world...Il y a 6 ans
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SQLPATH/login.sql Not Run…. Again! - SQLPATH/login.sql will fail to run in 19c on Windows if the SQLPATH value isn't to Oracle's liking. A simple rename can workaround the problem.Il y a 6 ans
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Logical Domains and Micro Partitions - Consolidation of different workloads often involves the use of virtualization technologies and/or partitioning of a physical server platform. Scenarios ...Il y a 6 ans
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Add Oracle Linux 8 Vagrant box - When using Oracle Linux (a lot) for local development you most likely want to use Vagrant to quickly deploy new environments locally. Oracle originally sup...
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Pluggable Database Cloning using Snapshot Copy - You need to be logged in to see this part of the content. Please Login to access.Il y a 6 ans
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MySQL history list effect on the latest record version reads - Mysql has a Multi Version Consistency Control(MVCC) to deal with Isolation part of ACID. Mysql effectively keeps the old row versions as long as needed for...Il y a 6 ans
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Rounding Timestamp Values with Fractional Seconds - Lately, I had to deal with a timestamp value with an overly long sequence of decimal digits, coming as a string in ISO 8601 format : 1970-01-04T15:20:34.49...Il y a 6 ans
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Welcome - This site contains links to material relevent to my professional life. I'm an IT professional with experience in a range of disciplines and technologies ...Il y a 6 ans
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OEM SSL Cipher Hardening Reset After Securing OMS - I have recently been installing Oracle Enterprise Manager at several sites, and one of the key requirements has been to ensure that the installation isn’t ...Il y a 6 ans
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Updates et Compression HCC (1) - Dans cet article je souhaiterais vous montrer ce qu'il se passe concrètement quand un update est effectué sur des lignes compressées en HCC (compression...Il y a 6 ans
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Completed Oracle 12c Database OCP Certification - Dear All, Alhumdulilah Completed Oracle 12c OCP Certification after working hard in Oracle 12c Databases. Worked & Studied Rigorously on Oracle 12c Databa...
Il y a 7 ans -
Sometimes the Simplest Things Are the Most Important - I didn’t ride in First Class a lot during my career, but I can remember one trip, I was sitting in seat 1B. Aisle seat, very front row. Right behind the la...Il y a 7 ans
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Version Conflicts among development maintained and customized templates encountered; aborting AutoConfig run - *Issues : * *Autoconfig Failing.* applrac@dev-app01:~$ applrac@dev-app01:~$ adautocfg.sh Enter the APPS user password: The log file for this session is ...Il y a 7 ans
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MIN/MAX Optimization and Asynchronous Global Index Maintenance - In this short post I would like to point out a non-obvious issue that one of my customers recently hit. On the one hand, it’s a typical case where the quer...Il y a 7 ans
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TIP 120 - How much memory my Linux process is using - _uacct = "UA-2338271-1"; urchinTracker(); Just came across some notes regarding Linux memory and I thought to share the below tip on how to find out memory...Il y a 7 ans
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Dbvisit Standby Version 9 has landed! - Dbvisit Standby, Disaster Recovery, Oracle [image: Dbvisit blog preview image] Dbvisit Standby Version 9 has landed! Wow what an exciting time at Dbvisit ...Il y a 7 ans
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Petit lexique du BigData - Avec l’importance grandissante des technologies BigData, les entreprises se sont retrouvées confrontées à une multitude de nouvelles notions, qu’elles on...Il y a 7 ans
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Package and distribute a Scala jar to run on the command line - Add this to pom.xml – (update the mainClass to match your program): In Eclipse right click project and run as Maven build with goal=package Sample output f...Il y a 7 ans
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CDB Fleet in Oracle Database 18c - RSS content Oracle database 18c introduces a new CDB Fleet feature which allows many CDBs to be managed as one. A CDB fleet is a collection of CDBs and...Il y a 7 ans
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Identifying PostgreSQL Bloat and fixing it without downtime - Original Post can be viewed at Identifying PostgreSQL Bloat and fixing it without downtime MVCC (Multi-Version Concurrency Control) feature allows databa...Il y a 7 ans
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Oracle Ksplice introduces Known Exploit Detection functionality - The Oracle Ksplice team has added some really cool new functionality in Oracle Ksplice. Instead of writing and copying the blog pretty much, just go dire...Il y a 7 ans
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Playing with Oracle Database Security Assessment Tool (DBSAT) - The Database Security Assessment Tool (DBSAT) is an incredible free command line tool provided by Oracle Corporation as a utility to help you verify your d...Il y a 7 ans
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Hierarchical Query with search parameters (Pruning) - The following is a query from a friend, Reproducing it here: I have a menu structure using a hierarchical query. i have search field to enter some string a...Il y a 7 ans
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Oracle Certification Highlights – March - Oracle Certification highlights provides insight on new exams, exam preparation, exams that are retiring, program announcements, and all the great things t...Il y a 7 ans
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Filtering in the APEX Interactive Grid - Remember Oracle Forms? One of the nice features of Forms was the use of GLOBAL items. More or less comparable to Application Items in APEX. These GLOBALS w...Il y a 7 ans
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OEM Target Discovery and One Potential Source of Duplicates - With OEM 12c came a feature that I've come to appreciate, the ability to discover all targets on a given environment. Part of my appreciation is the remo...Il y a 7 ans
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Statspack Documentation - There is a lot of information on Statspack on the web but I have not found the official Statspack documentation except for Oracle 9i. As of Oracle 10g the ...Il y a 7 ans
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Why JAVA Is A Top Career Option for Beginners - There are multiple platforms and streams for developing a product or application. When we talk of technologies and programming languages, Java is the most ...Il y a 7 ans
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Scripts to deal with SQL Plan Baselines, SQL Profiles and SQL Patches - To mitigate SQL performance issues, I do make use of SQL Plan Baselines, SQL Profiles and SQL Patches, on a daily basis. Our environments are single-instan...Il y a 7 ans
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The Ultimate guide to DevOps Tools Part #4 : Docker - In this series that related to DevOps Tools that helps you as DBA to automate your work and make it easier for you , this will be the last part for Docker....
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OTW18 Sessions: Data Engineering and Latch Contentions - Thank you all those who came to my sessions at the OakTable World. Here are the presentations materials Think Data; not Database Data Engineering for Data ...Il y a 7 ans
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Oracle Database EM 18 XE Available to Remote Clients - I found lot of posts about *Oracle Database 18 XE*. It's very interesting for me. I didn't blog about how to install, because it's very easy for using rpm...
Il y a 7 ans -
Stop/Start all RAC databases at once - Introduction Stopping all RAC databases running on an ORACLE_HOME at once and saving the state before shutting them down is really helpfull when you are ...Il y a 7 ans
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Explorative Information Visualization - The power of data visualization At the moment I am taking the course Explorative Information Visualization at Aalto University. This course focus on the pr...Il y a 7 ans
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UKOUG London Development and Middleware event - free! - The Oracle development landscape is an extremely broad and complicated one these days. It covers such a wide range of tools, technologies and practices it ...Il y a 7 ans
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Strange sessions hang with waits on Latch: Undo Global Data - Just a quick note for those who may face the same issue 😉 Situation was progressed like this: a lot of sessions waits for Latch: Undo Global Data with loc...Il y a 7 ans
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Thoughts on the Oracle ACE Program - Four years ago during ODTUG KScope14, I was designated as an Oracle ACE in the area of Database Development. Vikki Lira, who ran the ACE program at the tim...
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MySQL 5.6 vs 5.7 - Whitelist preview of Performance Insights has just started on RDS MySQL and it gave me a chance to visually compare load profiles of MySQL 5.6 and 5.7. I f...Il y a 7 ans
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The Oracle Active Session History (ASH) - a real treasure trove - When Oracle introduced the Active Session History (ASH) a new gate of tuning and monitoring options was opened. Yes we had statspack, extended tracing and...Il y a 7 ans
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N.R. Narayanamurthy, Ajith Narayanan, Bulgaria, Sofia, Istanbul, India - What's the link? - This blogpost was again long pending one, but I was not sure on how to write this non technical real life experience as a blogpost, as I used to write o...
Il y a 8 ans -
Failover with Amazon Aurora PostgreSQL - https://aws.amazon.com/blogs/database/failover-with-amazon-aurora-postgresql/ AdvertisementsIl y a 8 ans
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Duplicate database to a diferent server - Prepare OLD database cd $ORACLE_HOME/dbs; cp orapwDBNAME orapwDBNAME.beforemigration orapwd file=/oracle/DBNAME/12102/dbs/orapwDBNAME sysdg=yes sysbackup=y...Il y a 8 ans
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Reflecting Changes in Business Objects in UI Tables with Visual Builder - While the quick start wizards in Visual Builder Cloud Service (VBCS) make it very easy to create tables and other UI components and bind them to business...Il y a 8 ans
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Reflecting Changes in Business Objects in UI Tables with Visual Builder - While the quick start wizards in Visual Builder Cloud Service (VBCS) make it very easy to create tables and other UI components and bind them to business...Il y a 8 ans
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Reflecting Changes in Business Objects in UI Tables with Visual Builder - While the quick start wizards in Visual Builder Cloud Service (VBCS) make it very easy to create tables and other UI components and bind them to business...Il y a 8 ans
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Reflecting Changes in Business Objects in UI Tables with Visual Builder - While the quick start wizards in Visual Builder Cloud Service (VBCS) make it very easy to create tables and other UI components and bind them to business...Il y a 8 ans
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European Privacy Requirements: Considerations for Retailers - When retailers throughout Europe adopt a new set of privacy and security regulations this week, it will be the first major revision of data protection gu...Il y a 8 ans
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European Privacy Requirements: Considerations for Retailers - When retailers throughout Europe adopt a new set of privacy and security regulations this week, it will be the first major revision of data protection gu...Il y a 8 ans
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5 years - I’ve joined Pythian exactly 5 years ago. Back then I was a performance guy, with no real DBA and operational support experience. I knew enough about techno...Il y a 8 ans
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Date and Time Format in ASMCMD for File Listing - This is a short blog post to give you an idea how you can define your own custom date and time format for “ls -l” command in ASMCMD. If you use ASMCMD qu...Il y a 8 ans
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HDFS: Useful Hadoop Admin Commands - HDFS is designed more for batch processing rather than interactive use by users. The emphasis is on high throughput of data access rather than low latency...Il y a 8 ans
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NEW FEATURES IN ORACLE12C R2 AND ORACLE18C R1 - *NEW IN ORACLE12C AND ORACLE18C* Oracle12c R2 Multitenant Container Database Architecture Oracle12c R2 Database Architecture *New Features in Oracl...
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Good bye and thanks for the memories! - Hello fellow reader, 8 years ago I set up a goal to share my knowledge with fellow database engineers via this blog. This resulted in 36 (hopefully, decent...Il y a 8 ans
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#OUGN18 by OUGNorway is approaching - It is “now” time to post about upcoming OUGN 2018 Vårseminar. Since all 3 of my presentations are ready, all logistics are ready and the other stuff are r...
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#OUGN18 by OUGNorway is approaching - It is “now” time to post about upcoming OUGN 2018 Vårseminar. Since all 3 of my presentations are ready, all logistics are ready and the other stuff are r...
Il y a 8 ans
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Deep learning, concepts and frameworks: Find your way through the jungle (talk) - Today at OOP in Munich, I had an in-depth talk on deep learning, including applications, basic concepts as well as practical demos with Tensorflow, Keras a...Il y a 8 ans
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Oracle Solaris 11.4 Public Beta Released - Yesterday the Oracle Solaris 11.4 Beta was released to the public. You can download it from OTN to have your go with it. Please read the documentation to l...Il y a 8 ans
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Why Cloud? The reason changed in 2017…twice - In 2017, the predominant reason companies considered moving to the Cloud changed *multiple times*. While the “how” tends to shift frequently, seeing the “...Il y a 8 ans
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Service Contracts Renewal Portal - How to setup and use Service Contracts Renewal Portal Date: August 1, 2012Author: Parag Mone0 Comments Overview Renewing service contracts is an important ...Il y a 8 ans
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Cloud Networking Basics for the Non CCNA certified – IP Address - As more and more enterprises are migrating their IT deployments to the Public Cloud, several IT personnel who are not classically trained on networking the...Il y a 8 ans
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Beware of intensive slow query logging when using - log_queries_not_using_indexes - MySQL slow query log is great for identifying slow queries that are good candidates for optimisation. Slow query logging is disabled by default, but it is ...Il y a 8 ans
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Oracle and the Autonomous Database (a personal perspective from afar) - Yeah, if you hadn’t seen that one coming, hmmm, what can I say… Lot’s of…Il y a 8 ans
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The power of scripting - So your system has a neat automated archive and purge function for your rolling partitions, driven by the PART_RETENTION table which holds the table name...Il y a 8 ans
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How to Clone Grid Infrastructure binaries for Oracle Server(Standalone) - *Yesterday I was applying patch on one of our development servers and patch on Grid Home failed with space issue and binaries got corrupted.* *I thought o...Il y a 8 ans
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My Internship Experience at Pythian - I remember nervously walking out of one of King’s Cross St Pancras Station’s numerous exits searching for the 7 Stanley Building. I wandered through the mo...Il y a 8 ans
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DataGuard FastSync : Define the Redo Transport Mode SYNC NOAFFRIM - *FASTSYNC *is a new DataGuard capability available with Oracle Database 12c. The FASTSYNC configures redo transport services for this configuration member ...
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ORDS 17.3 Beta - Introducing REST enabled SQL - Download Got get it on the normal ORDS download page http://www.oracle.com/technetwork/developer-tools/rest-data-services/downloads/index.html Versioning ...
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InnoDB tablespace Encryption - InnoDB tablespace encryption uses a two tier encryption key architecture, consisting of a master encryption key and tablespace keys. When an InnoDBtable...Il y a 8 ans
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SQL Diag Repository - Every once in a while I look around the list of new (fixed) views in the instance trying to find useful / interesting things to add to SQLd360 and recently...Il y a 9 ans
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Why Education-to-Employment is such a Hard Road - When you are young, things change from one year to another in both education and personal life. That’s why, some like to call youth *the period of many t...Il y a 9 ans
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Using DML with ADRCI - The Oracle Database has some useful debugging and diagnostics features. One such utility called the Automatic Diagnostics Repository Command Interpreter or...
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acroread on Linux 6 - As per https://access.redhat.com/errata/RHSA-2013:1402 : Adobe Reader (acroread) allows users to view and print documents in Portable Document Format (PDF...Il y a 9 ans
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12.2 ACFS compression, part I - One of the new 12.2 features is the ability to transparently compress ACFS filesystems. Compression is enabled using *acfsutil* utility: [root@raca1 ~]#...Il y a 9 ans
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Oracle Database 12c Release 2 - Long Identifiers - Prior to Oracle Database 12c Release 2 have a problem with long identifier name, for example, in 11.2 version you cannot create long name (max 30 Bytes) t...
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Whoa! Release News for PHP OCI8, node-oracledb, Python cx_Oracle, Instant Client and ODPI-C - I'm just catching up on some releases that happened prior/during my vacation. Here are some things you may have missed tweets on: - PHP OCI8 2...Il y a 9 ans
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Comment acquérir les compétences nécessaires à la transformation digitale lorsqu'on est partenaire Oracle - Notre vie est de plus en plus interconnectée avec nos appareils. Alors que les machines sont de plus en plus intelligentes, l'Internet of Things est appe...Il y a 9 ans
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Oracle VM Features: Distributed Resource Scheduler - One of the handy management features of Oracle VM is the Distributed Resource Scheduler (DRS). DRS lets administrators load balance CPU and network resou...Il y a 9 ans
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IOUG Collaborate 2017 - I have a few presentations scheduled in IOUG Collaborate 2017, Las Vegas. 1. Session: 621: RAC Clusterware internals **Date/time: Mon, Apr 03, 2017 (01:30 ...Il y a 9 ans
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Oracle Database 12c R2 is in General Availability for On-premise Customers - With the announcement of GA for on-premises customers, Oracle Database 12c R2 is now available everywhere-in the cloud, with Oracle Cloud at Customer, an...Il y a 9 ans
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Object oriented logging - It is a very common requirement. You need to be able to log the start and end of procedure and function calls. You also need to log error and exception eve...Il y a 9 ans
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Oracle Database 12c Release 2 is out and with it Docker build files on GitHub - Oracle just released Oracle Database 12c Release 2 for on-premises Linux and Solaris. With the Oracle 12c R2 release Oracle has also released the latest ...Il y a 9 ans
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User-based filters in query zones - whilst developing query zones is relatively well documented, the ability to filter output based on the currently logged on user is less well defined, and...Il y a 9 ans
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Announcing the 2016 PL/SQL Challenge Championship for Database Design - In 2016, 340 people answered 6,185 quizzes in the Database Design quiz on the PL/SQL Challenge. I'm pleased to see so many people taking an interest in h...Il y a 9 ans
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The Relational Data Model - Mid-eighties. I was studying Computer Science. Little did I know back then that this thing called "The Relational Data Model" (RDM) would become huge in th...Il y a 9 ans
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“library cache lock” waits from many concurrent DBMS_JOB.submit() operations - I have faced performance issue on one of production database in banking environment. From AWR report I found that “library cache lock” as the top wait ev...Il y a 9 ans
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Setting up Transport Layer Security/Secure Sockets Layer for Managed ODP.NET - *[I was chatting with ODP.NET product manager, Alex Keh, and he let me know about some known issues that developers currently face when using managed ODP...Il y a 9 ans
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Book on Oracle 12c New features - A Book on Oracle 12c New features for administrators Hi All, It’s our pleasure to announce the availability of our first book – OCP 12c upgrade 1Z0-060 Exa...Il y a 9 ans
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Do you suffer from Storage Stockholm Syndrome? - The last year at DSSD (now a part of Dell EMC) has been an extremely interesting one for me, and I’ve learned a great deal, which is always good. Some of t...Il y a 9 ans
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On issuing commit from database PL/SQL - There was something of a storm on Twitter on 12-Oct-2016. Twitter is a nice medium for, say, showing a photo to your followers or referring them to an in...Il y a 9 ans
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Oracle back-port patches for Adaptive performance issues released for 12.1 (dynamic stats) - Previously I wrote about performance issues with 12.1 Adaptive features, specifically the large number of dynamic statistics checks, usually triggered by t...Il y a 9 ans
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Performance aspects of APEX reports - As this post appears, I'm presenting on this subject for the Dutch Oracle User Group OGh. This blog post won't contain as much detail as the presentation i...Il y a 9 ans
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Oracle CX Partner Enablement Summit – North America - Join us at the Oracle Headquarters in Redwood Shores, CA to continue to develop your CX practices and solutions based on Oracle’s CX Platform proposition...Il y a 9 ans
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#doag2016 and we are presenting!! - Portrix Systems will be at #doag2016… and we will be presenting too!! Each day of the conference, members of the Portrix Systems staff will be active! On T...Il y a 9 ans
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Favor Skeletal Implementation in Java - Skeletal implementation is a design by which we can use the benefits of the interface and abstract class together. The Java Collection API has adopted th...Il y a 9 ans
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Segment Statistics - rem******************************************************** rem Show Segments with the highest Lock waits rem André Karlsson rem https://www.protractus.com...Il y a 9 ans
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SQLfail? SQLwin! - update sqlfail set last_posting_date = date'2016-08-18'; It’s been a while since I’ve published here. You see, I’ve been kind of busy. Back in January 2015...Il y a 9 ans
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Database Olympics - Training for the Medals? - I will admit, I have been inspired by watching the Olympics. The work, training and even reinventing that the athletes do to be successful at the competiti...
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ORA-00600 [2663], [12], .... - After not having spotted ORA-00600 for a while a new one showed up. ORA-00600: internal error code, arguments: [2663], [12], [3665664941], [12], [38847178...Il y a 9 ans
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The User Experience (UX) Lab: Onsite Usability Testing at OpenWorld - Heading to Oracle OpenWorld? The Oracle Applications User Experience (OAUX) team will be hosting the usability lab at Oracle’s largest conference of the ...Il y a 9 ans
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Critical Patch Update for July 2016 Now Available - The Critical Patch Update (CPU) for July 2016 was released on July 19, 2016 and Oracle strongly recommends applying the patches as soon as possible. A good...
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R12.2 CUSTOM APPLICATION/TOP - STEP1: Download Patch 3636980 “Support Diagnostics (IZU) patch for AD Splice” from My Oracle Support. STEP2: Manually copy the three .txt files from the 36...Il y a 10 ans
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SQL Joins - Codeproject has this image which explains the simple basics of SQL joins, taken from: http://www.codeproject.com/KB/database/Visual_SQL_Joins.aspx
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“ASH math” of time_waited explained with pictures and simulation - As explained by John Beresniewicz, Graham Wood and Uri Shaft in their excellent overview ASH architecture and advanced usage, avg( v$active_session_history...Il y a 10 ans
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zabbix dbsyncers and caching for log items - in version 3.0.1 - I am using zabbix for about a year now and it still has not shown me all power that is inside. One of the things that is very interesting to know more ab...Il y a 10 ans
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RAC Installation Step by Step - Hi All, Please find the below link for RAC installation document for reference. Click here for RAC Installation doc link Cheers, SachinIl y a 10 ans
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Get the Familiar Database You Trust, In the Cloud - With Oracle Database Cloud, you can have up to 3x mirroring of storage for data redundancy, 100% system backup and restore, plus data centers in multiple...Il y a 10 ans
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Moving Sideways - The past two years have seen a lot of change in my life :- - I moved to Singapore thinking it would be for a year or two at least and is now looking ...Il y a 10 ans
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Moving Sideways - The past two years have seen a lot of change in my life :- - I moved to Singapore thinking it would be for a year or two at least and is now looking ...Il y a 10 ans
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Formation Performance Oracle à Genève le 18 mai 2016 - Une journée de formation Performance Oracle est organisée par le Swiss Oracle User Group le 18 mai 2016 à Genève. http://www.developpez.net/forums/blogs/19...Il y a 10 ans
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Help Celebrate One Million Answers at the PL/SQL Challenge! - *Sometime* in the next couple of months, someone will submit the 1,000,000th answer on the PL/SQL Challenge. And Chris Saxon, member of the AskTom Answer...Il y a 10 ans
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Tech15 - Last December I presented at Tech15, the largest Oracle conference in the Europe. Many thanks to the organizing team of this great conference. Here is my p...Il y a 10 ans
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Denodo Server - Setup & configure Cache Database to MySQL: - *Denodo Server - Setup & configure Cache Database: - Bottlenecks* *Step1: * Install the Denodo Server by clicking the executable and follow the steps wit...Il y a 10 ans
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Client support for WITH using PL/SQL - My employer has been using 12c for about a year now, migrating away from 11gR2. It's fun working out the new functionality, including wider use of PL/SQL. ...Il y a 10 ans
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Restoring and Recovering the Database on a New Host using RMAN - This blog will demonstrate detailed steps to restore a database on New Host using RMAN. You can also use it to move a production database to new host as...
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OCI Client-Side Deployment in 12C - The 12c version has introduced a new features called “OCI Client-Side Deployment Parameters” this feature gives you the possibility to override some OCI pa...Il y a 10 ans
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Moving my blog! - Hi All! I just wanted to let you know I’ve moved my blog to https://me-dba.com I’m going to hide all content from this site as it will be available from th...Il y a 10 ans
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Point In Time Recovery Using Binlog In MySQL-Part 1 - Lets see how we can recover our database or tables using MySQL Binary logs. To avail this feature make sure that BINARY LOGS are enabled in MySQL.Here We ...Il y a 10 ans
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Docker Containers and Delphix Architecture - I use wordpress for my personal blog. Works fine on it’s own. It is just me making a few posts here and there. Occasionally there are problems like an upgr...Il y a 10 ans
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ODI Interface'lerinde çalışma süresiyle ilgili performans iyileştirmeleri - Merhabalar, Bir önceki yazımda ODI Uygulama Performans İyileştirme calısmasına ek olarak ,du yazımdada ODI üzerinden yapılan geliştirmelerde yaşanılan per...Il y a 10 ans
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Oracle Clusterware - Startup (Internals) - It's an long standing post for me to share how the CRS start-up works. Hope every one known with pictorial representation of CRS start-up provided in orac...Il y a 10 ans
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Giúp nam giới điều trị ung thư tinh hoàn bằng nấm lim xanh - Ung thư tinh hoàn là một căn bệnh chỉ xuất hiện ở nam giới liên quan đến chức nắng sinh sản. Căn bệnh này có thể xuất hiện ở bất kỳ độ tuổi nào...Il y a 10 ans
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Mystats utility - A variation on Jonathan Lewis's SNAP_MY_STATS package to report the resource consumption of a unit of work between two snapshots. Designed to work under co...Il y a 10 ans
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Grants to retrieve SQL_MONITOR - A quick post as I have been struggling to get the full list of object level grants to be able to retrieve the output of DBMS_SQLTUNE.REPORT_SQL_MONITOR. 1 ...Il y a 10 ans
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How to Find the Optimal Configuration for Your Virtualized Environment - Thanks to the New York Oracle User Group for allowing me to present and to all who attended for their valuable questions and comments. The presentation sho...Il y a 10 ans
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ACCESSIBLE BY clause versus Function Based Indexes - Oracle introduced the ACCESSIBLE BY clause in 12c to improve the security of subrograms. Basically the scenario is following: Let’s create a tax stored fun...Il y a 10 ans
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DOAG 2015: Best of Oracle Security 2015 - Yesterday I gave my yearly presentation “Best of Oracle Security 2015” at the DOAG 2015 conference in Nürnberg. In this presentation I showed different Ora...Il y a 10 ans
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Things Be-a-Changin' - "OTN Garage" Will be Called "OTN Systems Hub" Very Soon! - Oracle OpenWorld 2015 | OTN Systems Hub Hi Y'all, As I have mentioned a few months ago, the *OTN Garage* name will be changing to *OTN Systems Hub*. Thi...Il y a 10 ans
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Database Link between Oracle Database and SQL Server Database - Here is link of this post Database Link between Oracle Database and SQL Server Database This site moved to dbacatalog.blogspot.com please visit dbacatalog....Il y a 10 ans
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Oracle APEX 5.0.2 now available - Oracle Application Express 5.0.2 is now released and available for download. If you wish to download the full release of Oracle Application Express 5.0.2, ...Il y a 10 ans
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Client Connection Fails to Instance on Linux - I faced with a problem which clients were failing to connect to a DB2 instance on linux. To check it out I logged on to the system as root and tried to "s...Il y a 10 ans
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Automation for DBA - Vagrant part 2 - Hello, In the last post I presented steps to create Virtual Machine using Vagrant with Virtual Box. It is a native combination but there are other possib...Il y a 10 ans
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Exadata 12.1.2.2.0 Software is Released - Good new features announced, such as finding Flash Cache and Flash Log statistics on AWR, automatic ASM data redundancy check even shutting down a storage ...Il y a 10 ans
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db file scattered read, db file sequential read & direct read wait events explanation - As Oracle DBA's we come across these wait events in most environments. We will discuss their definitions and see what we can do to reduce them. *db file sc...
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Fill the Glass Episode 4 with Jorge Rimblas! - Measuring software performance in the real world Featured Speaker: Jorge Rimblas September 11, 2015 | 10:00am–11:00am CST Jorge is your Been There Done Tha...Il y a 10 ans
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Make Your Nominations: Oracle Database Developer Choice Awards - I Did. You Should. Here's the Nomination Form. Here's Why: The Oracle Database Developer Choice Awards celebrate and recognize technical expertise and ...Il y a 10 ans
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jeudi 29 septembre 2011
jeudi 22 septembre 2011
Division par zéro fonctionne ??!!!!!
Deviner le résulat de la requête suivante :
SELECT 1 FROM DUAL WHERE EXISTS ( SELECT 1/0 FROM DUAL ) ;
On s'attend à :
Mais ça donne bien 1.
SELECT 1 FROM DUAL WHERE EXISTS ( SELECT 1/0 FROM DUAL ) ;
On s'attend à :
ORA-01476:
|
divisor is equal to zero
|
Cause:
|
An expression attempted to divide
by zero.
|
Action:
|
Correct the expression, then retry
the operation
|
Mais ça donne bien 1.
mardi 20 septembre 2011
dimanche 18 septembre 2011
Architecture d'une base des données Oracle
Ces deux tutoriels s’avèrent intéressants pour comprendre l'architecture d'une bases des données oracle.
samedi 17 septembre 2011
Grant sur les vues V$
J'ai essayé de donner le droit select à l'utilisateur oracle HR sur la vue v$session ,
grant select on v$session to hr;
j'ai reçu ce message ,
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