The views are very tricky. Sometimes they help performance and sometimes they negatively impact performance. Recently, during Comprehensive Database Performance Health Check, I realized that one of the view was the real performance killer. The challenge was to identify column used in a view. We decided to open the view and list all the columns but that was very cumbersome tasks. Finally, we decided to write a script which can help identify columns used in a view.
SQL SERVER – CTE can be Updated
Today I have received a fantastic email from Matthew Spieth. SQL Server expert from Ohio. He recently had a great conversation with his colleagues in the office and wanted to make sure that everybody who reads this blog knows about this little feature which is commonly confused. Here is his…
Read MoreSQL SERVER – SSMS Automatically Generates TOP (100) PERCENT in Query Designer
Earlier this week, I was surfing various SQL forums to see what kind of help developer need in the SQL Server world. One of the question indeed caught my attention. I am here regenerating complete question as well scenario to illustrate the point in a precise manner. Additionally, I have…
Read MoreSQL SERVER – Get File Statistics Using fn_virtualfilestats
Quite often when I am staring at my SSMS I wonder what is going on under the hood in my SQL Server. I often want to know which database is very busy and which database is bit slow because of IO issue. Sometime, I think at the file level as…
Read MoreSQL SERVER – Index Created on View not Used Often – Observation of the View – Part 2
Earlier, I have written an article about SQL SERVER – Index Created on View not Used Often – Observation of the View. I received an email from one of the readers, asking if there would no problems when we create the Index on the base table. Well, we need to…
Read MoreSQL SERVER – Index Created on View not Used Often – Observation of the View
I always enjoy writing about concepts on Views. Views are frequently used concepts, and so it’s not surprising that I have seen so many misconceptions about this subject. To clear such misconceptions, I have previously written the article SQL SERVER – The Limitations of the Views – Eleven and more….…
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SQL SERVER – Index Created on View not Used Often – Limitation of the View 12
I have previously written on the subject SQL SERVER – The Limitations of the Views – Eleven and more…. This was indeed a very popular series and I had received lots of feedback on that topic. Today we are going to discuss something very interesting as well. Let us learn about the issue of index created on view on used often.