Database Administration & Monitoring

Getting Ansible up and running on a SLES 12 SP1 host

Recently at a customer we had to setup Ansible on a SLES 12 SP1 host. In comparison to RedHat or Ubuntu based distributions there are some more steps to do as Ansible is not(…)

SQL Server AlwaysOn: new services packs and new diagnostic capabilities

As you certainly know, the SQL Server 2014 SP2 has been released by Microsoft with some interesting improvements that concern SQL Server AlwaysOn and availability groups feature.

AMM and ASMM derived parameters

By Franck Pachot . The latest DBA Essentials Workshop training I've given raised a question about PGA_AGGREGATE_LIMIT. The default depends on PGA_AGGREGATE_TARGET. So how is it calculated in AMM where PGA_AGGREGATE_TARGET is dynamic? Is it also(…)

SQL Server 2016: New SQL PowerShell CMDLETs for ErrorLog

With the latest release of SQL Server Management Studio(SSMS) 2016 (13.0.15500.91), downloadable here, was introduced new CMDLETs for Always Encrypted, SQL Agent and the  ErrorLog. In this article, I will(…)

Oracle Public Cloud patch conflict

By Franck Pachot . This morning I wanted to test a patch (18633374) in the Oracle Cloud Service. The DBaaS was created as an 'Enterprise Edition Extreme Performance' which comes with all options, including multitenant option. I applied my patch.

SQL Server 2016 AlwaysOn: Direct seeding and backup considerations

As promised in my prior blog post, we’ll talk now about direct seeding feature and backups. We found an interesting LIMIT_CONCURRENT_BACKUPS value for current state of the hadr_automatic_seeding_state_transition event. As said last time, this value is(…)

Set the SQL Native Client Default Port with PowerShell

I written an article about “SQL Server 2012: Configuring your TCP Port via PowerShell” and I received a question from PaulJ: “How do you set the port for(…)

Nulls in composite keys

By Franck Pachot . Comparison of NULL can be misleading and it's even worse for unique constraint validation. Having partial nulls in a composite key can be tricky because the SQL ANSI specification is not very easy to understand, and(…)

SharePlex Compare and Repair commands

By Mouhamadou Diaw Reading Franck Pachot blog about comparing source and target in a Dbvisit replication (http://dbi-services.com/blog/compare-source-and-target-in-a-dbvisit-replication/), I decide to write a small article about how we can do same thing with SharePlex. Indeed SharePlex provides built-in(…)

Oracle Multitenant feature name

By Franck Pachot . We all know what is the multitenant option: a container database (CDB) with multiple user pluggable databases (PDB). This requires Enterprise Edition plus option. But you can use the same architecture without the option and even(…)