query optimizer

SQL Server 2016: new database-scoped configuration parameters part 2

In this blog post, let’s continue with other database-scoped options shipped with the SQL Server 2016 RC0. We will first begin with the first one and my preferred option: setting the MAXDOP value for(…)

Join transitive closure and query simplification considerations

Yesterday, I had a discussion with one of my friend who works with Oracle about some different behaviours between each query optimizer against one particular query. You can read his blog post and get the repro script here. I(…)