As the title is very clear what this post is about I will not write long description. I have listed definition of FILLFACTOR from BOL here.
SQL SERVER – Explanation and Understanding NOT NULL Constraint
NOT NULL is integrity CONSTRAINT. It does not allow creating of the row where column contains NULL value. Most discussed question about NULL is what is NULL? I will not go in depth analysis it. Simply put NULL is unknown or missing data. When NULL is present in database columns,…
Read MoreSQL SERVER – Three Rules to Use UNION
I have previously written two articles on UNION and they are quite popular. I was reading SQL book Sams Teach Yourself Microsoft SQL Server T-SQL in 10 Minutes By Ben Forta and I came across three rules of UNION and I felt like mentioning them here. UNION RULES A UNION…
Read MoreSQL SERVER – 2005 – OUTPUT Clause Example and Explanation with INSERT, UPDATE, DELETE
SQL Server 2005 has new OUTPUT clause, which is quite useful. OUTPUT clause has accesses to inserted and deleted tables (virtual tables) just like triggers. OUTPUT clause can be used to return values to client clause. OUTPUT clause can be used with INSERT, UPDATE, or DELETE to identify the actual…
Read MoreSQL SERVER – Order of Result Set of SELECT Statement on Clustered Indexed Table When ORDER BY is Not Used
“What will be the order of the result set of a SELECT statement on clustered indexed table when the ORDER BY clause is not used?”
SQL SERVER – Actual Execution Plan vs. Estimated Execution Plan
I was recently invited to participate in big discussion on one of the online forum, the topic was Actual Execution Plan vs. Estimated Execution Plan. I refused to participate in that particular discussion as I have very simple but strong opinion about this topic. I always use Actual Execution Plan…
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