It is not possible to Propagation of Compatibility Level in AlwaysOn or mirroring from primary to secondary mirroring. Let us learn it today.
They reached out to me to help them fix their SQL Server Performance issues after upgrading. Comprehensive Database Performance Health Check.
Let us see in this blog post the performance comparison between Batch Mode and Row Mode. The most asked question was about the Performance difference.
One thing impressed me about the latest version of SQL Server 2019 is its support to Compatibility Level from 2008 to 2019.