SQL SERVER – UDF – Remove Duplicate Chars From String

Few days ago, I received following wonderful UDF from one of this blog reader. This UDF is written for specific purpose of removing duplicate chars string from one large string. Virendra Chauhan, author of this UDF is working as DBA in Lutheran Health Network. CREATE FUNCTION dbo.REMOVE_DUPLICATE_INSTR (@datalen_tocheck INT,@string VARCHAR(255))…
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SQLAuthority News – Best Articles on SQLAuthority.com

SQL SERVER – Cursor to Kill All Process in Database SQL SERVER – Find Stored Procedure Related to Table in Database – Search in All Stored procedure SQL SERVER – Shrinking Truncate Log File – Log Full SQL SERVER – Simple Example of Cursor SQL SERVER – UDF – Function…
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SQL SERVER – Deterministic Functions and Nondeterministic Functions

Deterministic functions always returns the same output result all the time it is executed for same input values. i.e. ABS, DATEDIFF, ISNULL etc. Nondeterministic functions may return different results each time they are executed. i.e. NEWID, RAND, @@CPU_BUSY etc. Functions that call extended stored procedures are nondeterministic. User-defined functions that…
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SQL SERVER – Simple Example of WHILE Loop With CONTINUE and BREAK Keywords

This question is one of those questions which is very simple and most of the users get it correct, however few users find it confusing for the first time. I have tried to explain the usage of simple WHILE loop in the first example. BREAK keyword will exit the stop the while loop and control is moved to the next statement after the while loop. CONTINUE keyword skips all the statement after its execution and control is sent to the first statement of while loop. Run following examples in Query Editor and see the result. This is very easy to understand example for CONTINUE and BREAK keywords.

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SQL SERVER – Get Permissions of My Username / Userlogin on Server / Database

A few days ago, I was invited to one of the largest database company. I was asked to review database schema and propose changes to it. There was special username or user logic was created for me, so I can review their database. I was very much interested to know what kind of permissions I was assigned per server level and database level. I did not feel like asking their Sr. DBA the question about permissions.

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