Infrastructure at your Service
I got an interesting question today from a customer which created a database on ODA. He selected the template odb-04 which shows 32GB Memory but got a database with a 16GB SGA… Is it due to the PGA size, a limitation in the system, the huge pages usage which is reached or even a bug?
Last week (09/12/2016) was announced the new MySQL 8.0.0 DMR (Development Milestone Release) It is now available for download at dev.mysql.com I downloaded and installed it Following are my first impression on some new features First of all, when you remember the size of earlier versions, it is more & more gluttonous, see below mysql-5.0.96-linux-x86_64-glibc23.tar.gz 121.2M mysql-5.1.72-linux-x86_64-glibc23.tar.gz 127.8M mysql-5.5.52-linux2.6-x86_64.tar.gz 177.2M mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz 299.7M mysql-5.7.15-linux-glibc2.5-x86_64.tar.gz 611.8M mysql-8.0.0-dmr-linux-glibc2.12-x86_64.tar.gz is around 1Gb and uncompressed 3.6Gb (Oups…) At…
It’s with pleasure to announced dbi services have upgrade the infrastructure for Oracle DBA essentials workshop. We have migrate the release of Oracle 11g R2 to the latest version Oracle 12c features and install the last PSU (April 2016). During this course you understand different topics: Understand the Oracle database architecture Install and Manage Oracle database Administer Oracle databases with dbi expert certified OCM or ACE director For more information about the workshop, please click…
A customer asks me to find all sql logins enabled on servers where windows authentication only is enabled. The goal is to clean sql logins on all servers through the CMS (central management server). In some cases, sql logins are created even if the authentication is set to “Windows authentication only mode”. I think that this query is interesting and I will just share it with you. DECLARE @value INT USE [master] EXEC xp_instance_regread N’HKEY_LOCAL_MACHINE’,…
I post a little tips for orphan database-users that we cannot drop so easily in the SSISDB… I discovered this by a customer and it was very tricky to find the explanation and the solution. This is the reason why I will share it with you…
Since Oracle 11g, Oracle maintains two copies of the database’s alertlog in ADR: a flat text file in the sub-directory trace and an XML like in the folder alert. I had a case recently at a customer where the log.xml was moved to another place and compressed for archiving reason. As the regular text file was not containing old data, the goal was to exploit the archived XML -like file. When the file is still located…
Some months ago, my colleague Nathan explained you the bases of the new Stretch Database functionality via two blogs here and here. With the new SQL Server 2016 CTP 3.0, Stretch Database now includes new features and enhancements that I will sow you in this blog. In previous versions of SQL Server 2016 CTP 2.x, before to be allowed to Enable Stretch Database, you had to enable the “Remote Data Archive” option for the…
Recently at a customer I was confronted with a problem of restarting the Oracle Database 12c automatically on a Windows Server 2008 R2 x64. I installed Oracle 12.1.0.1.0 with a user of service in a domain who has member of the Group ORA_DBA. The authentication service is correctly set with the NTS parameter in the sqlnet.ora file. This Installation has been successfully but after a reboot we can see the database are not OPEN. oracle@********:C:\Users\oracle\…
We have Upgrade our Environment Oracle DBA Essentials Workshop of release 11.2.0.3 to 11.2.0.4. From now on, you can operates the various subjects on the new release. In this article, I present you the procedure to be followed for the upgrade of your database: Update DMK to the version 14-10 Upgrade database Install Oracle Patchset 11.2.0.4 and PSU Update DMK 14-10 The first step it’s update Data Management Kit, included dmk_sql. We need to Download,…
I had to perform a duplicate database between 2 ODAs and was always facing an ORA-65500 at the begin of the RMAN operation. Looking a bit deeper in the log outputs pointed me out that it was due to some changes in the way RMAN makes the duplicate in 12c and cluster resources management.
