Infrastructure at your Service

Category Archives: Database Administration & Monitoring

Jérôme Witt

Install Oracle instant client and perl DBD::Oracle @ Mac OS X Yosemite

By | Database Administration & Monitoring | No Comments

Recently, I tried to install and connect to Oracle databases directly from my new Mac Book using perl  (Yes, perl is still one of the most friendly programming language for DBAs). What first seemed to be easy was in reality quite difficult and long. Alone, the huge quantity of  hits on the WorldWideWeb was impressive. However none of the hits were providing the entire solution. Follows, all the steps to prepare and install the Oracle…

 
Read More
David Barbarin

SQL Server AlwaysOn: number of databases and the hadr worker pool

By | Database Administration & Monitoring | No Comments

Often, when I’m in charge to implement an SQL Server AlwaysOn infrastructure with availability groups, customers ask me if it exists some best practices and recommendations about the maximum number of databases in an availability group planning. In fact, we have to keep in mind the relation between databases and the SQL Server worker pool in this architecture. Remember that the SQL Server AlwaysOn and availability group feature is an extension of the SQL Server…

 
Read More
Stéphane Savorgnano

SQL Server 2016: Upgrade Advisor

By | Database Administration & Monitoring, Technology Survey | No Comments

During the read of a blog of my colleague Nathan Courtine about Stretch database, I installed the version of SQL Server 2016 Upgrade Advisor and Oh surprise! it looks really NEW! “A new generation of advisor tool for SQL Server” aka Microsoft. To download and install it, click here. This new version has a dual role: Check the compatibility of old versions of SQL Server compared to SQL Server 2016 Help adoption of new SQL…

 
Read More
Daniel Westermann

If we stop the GoldenGate replication: Will transactions running at that time on the source will be replicated before replication stops?

By | Database Administration & Monitoring | No Comments

This is the next post on this GoldenGate series: Installing and patching Oracle GoldenGate 12c to the latest release Setting up a sample replication with GoldenGate Performing an initial load with GoldenGate (1) – file to replicat Performing an initial load with GoldenGate (2) – expdp/impdp Using GoldenGate event actions to suspend replication for end of day reporting One question that pops up when stopping the replication by using an event marker is: What happens…

 
Read More
Daniel Westermann

Using GoldenGate event actions to suspend replication for end of day reporting

By | Database Administration & Monitoring | 3 Comments

The last post in this series outlined on how to do an initial load of the target database using the “expdp/impdp” method: Installing and patching Oracle GoldenGate 12c to the latest release Setting up a sample replication with GoldenGate Performing an initial load with GoldenGate (1) – file to replicat Performing an initial load with GoldenGate (2) – expdp/impdp In this post I’ll look into how to use event actions to suspend GoldenGate replication for…

 
Read More