Oracle 21c Broker : Fast-Start Failover Callout Scripts in Action
With Oracle 21c (In fact Oracle 20c), we have a nice new feature with the broker which is the Fast-start Failover Callout Configuration scripts. I talked about this feature in some presentations I did...
View ArticleDocumentum – r_server_version reset to P00 instead of correct patch version
A few weeks ago, an issue was identified at a customer which would cause the value of “dm_server_config.r_server_version” to be reset to the GA version number (16.4 P00) instead of the currently...
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SQLBits 2022 – Levelling up my Performance Tuning skills
As a consultant at dbi services, I am lucky enough to have time dedicated to training and conferences. This week I have the chance to attend one of the most important conferences for Data...
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How to solve Stored Procedure parameter sniffing problems
Since Tuesday, I have the chance to follow the SQLBits 2022 conference. Sadly, I have to do it remotely this year but I promise next time I will come in-person SQLBits is one of the largest SQL Server...
View ArticleODA : Appliance creation failing in version 19.14 due to missing known_hosts...
I have recently deployed a new ODA with last version 19.14 at customer side, and we could face an interesting failure deploying the appliance, which I would like to share with you. Problem description...
View ArticlePostgreSQL client only installations from source code
During our PostgreSQL DBA Essentials workshops we install PostgreSQL from source code. We do that, to provide the participants all the options they have. There is nothing wrong with using a packaged...
View ArticleOracle DBs and ransomware attacks
By Clemens Bleile I had a discussion with a customer recently about the risk of running into an issue with ransomware encrypting data in an Oracle databases. Just to quickly recap on what ransomware...
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Upcoming RHEL 9
This Blog is about a setup of RHEL 9 BETA and changes to RHEL 8 and Fedora 34 which is the base of RHEL 9. Let’s start with the setup. Start the installation. Preview warning: Language selection: Main...
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SSDT offline installation for Visual Studio 2019
Introduction Before Visual Studio 2019 you were able ton install the SSDT with the offiline installer You were able to install it as a stand alone Visual Studio for SSDT or for an already installed...
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Striim, first step
In this blog-post I will discuss about my first test with Striim. Striim is a data integration platform which can ingest real-time data from a variety of sources (SQL Server, Oracle, Kafka, Hadoop…)...
View ArticleActive Duplicate from standby database
Generally we do active duplicate from primary database, but I think it should be fine to see what happen if we do active duplicate a database from a standby database. So, I do some tests and I write...
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Striim, real-time data integration
In my first blog-post about Striim, I showed you how to create an Initial Load from an on-premise database to an Azure SQL DB. In this second blog post I will create an application which will stream...
View ArticleExtract all DDL from an Oracle database
Introduction Extracting DDL is sometime useful for creating similar objects in another database without data. Basically everything can be extracted from a running Oracle database. The needs My customer...
View ArticlePostgreSQL 15: More flexibility with setting parameters
Another nice feature just made it into PostgreSQL 15: You can now control who is allowed to set specific parameters. This gives you a lot more flexibility, especially when you are hosting PostgreSQL...
View ArticlePostgreSQL 15: Some new features
PostgreSQL version 15 is on its way and we get a better and better look, what will be included in the future release. So it’s time to have a look at some new future features 1. Create privilege on...
View ArticleOracle 21c : Dealing with FastStartFailoverActionOnPreCalloutFailure
In a previous blog I talked about the FSFO callout scripts which is a new feature with Oracle 21c with the broker. This feature will allow to execute some tasks before and after a fast-start failover....
View ArticleOracle Data Guard : Where to Host The Master Observer
An observer is an OCI client that connects to the primary and target standby databases using the same SYS credentials you used when you connected to the Oracle Data Guard configuration with DGMGRL. The...
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SQL Server: Automatic Soft-NUMA and uneven CPU load
SQL Server has CPU limitations depending on the Edition. If your VM is not configured properly you can reach these limits very easily. In a previous post, I described the effect VM misconfigurations...
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SQL Server: Find who forced a plan in Query Store with this new XEvent
The latest Cumulative Update for SQL Server 2019 has been released this week on Monday. It brings many bug fixes and some small improvements. One of these improvements is the addition of an extended...
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Near Zero Downtime Migration and failback with GoldenGate
Oracle GoldenGate allows to migrate Oracle database with Near Zero Downtime and with failback capability. Near Zero Downtime migration means very minimal application switchover downtime. The failback...
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