The EXCEPT operator returns distinct rows from the left query with no match on the right, just like NOT IN. Both give the same plan, but EXCEPT reads simpler.
What Is NULL in SQL Server? The Value That Isn’t a Value
NULL in SQL Server is not zero and not an empty string. It means the value is unknown, and that changes every comparison you write. Why equals never matches, the NOT IN trap that returns nothing, and where NULL is allowed to live.
SQL SERVER – Script/Function to Find Last Day of Month
A one line DATEADD query to find the last day of month for any date. It handles leap years: February 2008 gives the 29th and 2007 the 28th.
SQL SERVER – ASCII to Decimal and Decimal to ASCII Conversion
In this blog post we will see how we can convert ASCII to Decimal and Decimal to ASCII. In simple words, we will see the decimal and ASCII conversion.
SQL SERVER – 2005 Understanding Trigger Recursion and Nesting with examples
How trigger recursion and nesting work in SQL Server 2005: triggers nest up to 32 levels, recursive triggers fire themselves, and both can be turned off.
SQL SERVER – Disable Index – Enable Index – ALTER Index
When DTS, BCP or BULK INSERT needs an index out of the way, I prefer to disable index with ALTER INDEX and enable it again with REBUILD. AdventureWorks example.
SQL SERVER – Fix : Error 1205 : Transaction (Process ID) was deadlocked on resources with another process and has been chosen as the deadlock victim. Rerun the transaction
Fix : Error 1205 : Transaction (Process ID) was deadlocked on resources with another process and has been chosen as the deadlock victim. Rerun the transaction.