Fabiano launches into a sound technical explanation of the way that the query optimiser works in SQL Server with a mention of Brazilian Soccer stars and young ladies on Copacabana beach. You'll never quite think of statistics, execution plans, and the query optimiser the same way again after reading this, but we think you'll understand them better.
2010-02-02
5,853 reads
With SQL Server 2005 DMVs, we can easily find query performance statistics. Every DBA has a favorite script to find query performance stats. I also have one. But, are all the queries captured by the DMVs? In this tip I will walk through capturing some of this data and show what is capture and what is not captured by the DMVs.
2009-10-05
4,784 reads
2009-09-21
3,788 reads
2009-09-17
3,610 reads
In this three-part series I'll look at what you can do to persist this data so you don't find yourself waiting for usage stats to compile over a reasonable period of time just so you can harness the power of the indexing DMOs in your performance tuning process.
2009-05-26
1,438 reads
It’s time for T-SQL Tuesday again! And we’re almost to number 200! T-SQL Tuesday...
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The DMV, sys.dm_exec_cached_plans, contains rows for each cached plan on an instance. In Azure SQL Database, not every used has rights to every database, as there does exist an instance behind each database. How is security handled for this DMV in Azure?
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