Yesterday I wrote a blog post on the topic SQL SERVER – COUNT(*) and Index Used, lots of people asked me to follow up question.
SQL SERVER – COUNT(*) and Index Used
DBA suspects those operations are using lots of clustered index scans. Let us discuss today COUNT(*) and Index Used. Let’s learn.
SQL SERVER – Number of Rows Read – Execution Plan
Recently one of the clients sent me images from the execution plan and his question was about the Number of Rows Read in the SQL Server Execution plan.
SQL SERVER – sp_updatestats Performance and Disabled Nonclustered Indexes
Today I am going to share our very interesting conversation about sp_updatestats and Disabled Nonclustered Indexes. Let us discuss.
What Happens If the Clustered Index is Disabled? – Interview Question of the Week #291
Question: What Happens If the Clustered Index is Disabled?
Answer: If you disable the clustered index, you can’t retrieve data from the table.
How to Force Index on a SQL Server Query? – Interview Question of the Week #281
Question: How to Force Index on a SQL Server Query?
Answer: I personally do not like to force an index on any query. Let us learn together.
SQL SERVER – Poor Indexing Strategies – 10 Don’ts for Indexes
The most questions were around section Poor Indexing Strategies and that lead me to write about 10 Don’ts for Indexes. Let us talk about it today.