Interview Questions

1. What’s New in SQL Server 2012 with Respect to Statistics?

Starting with SQL Server 2012, SQL Server Query Optimizer creates and maintains temporary statistics in tempdb database for the read-only database or read-only snapshot database or readable secondaries in the AlwaysOn cluster in order to ensure your queries perform better. These temporary statistics are created and maintained by SQL Server Query Optimizer only; though you can delete them when not needed. These statistics are suffixed with “_readonly_database_statistic” to differentiate it from the regular statistics. 

By Hena Parveen 2 0
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