Replace Employee with your table name, and Salary with your column name. Where N is the level of Salary to be determined. Let us see a query to retrieve the Nth Maximum Value.
SQL SERVER – Locking Hints and Examples
Locking Hints and Examples are as follows. The usage of them is the same but the effect is different. Let us learn it today together.
SQL SERVER – SELECT vs. SET Performance Comparison
Usage: SELECT : Designed to return data. SET : Designed to assign values to local variables. While testing the performance of the following two scripts in query analyzer, interesting results are discovered. SET @foo1 = 1; SET @foo2 = 2; SET @foo3 = 3; SELECT @foo1 = 1, @foo2 =…
Read MoreSQL SERVER – Difference Between Unique Index vs Unique Constraint
Unique Index and Unique Constraint are the same. They achieve same goal. SQL Performance is same for both. Add Unique Constraint ALTER TABLE dbo.<tablename> ADD CONSTRAINT <namingconventionconstraint> UNIQUE NONCLUSTERED ( <columnname> ) ON [PRIMARY] Add Unique Index CREATE UNIQUE NONCLUSTERED INDEX <namingconventionconstraint> ON dbo.<tablename> ( <columnname> ) ON [PRIMARY] There…
Read MoreSQL SERVER – Enable xp_cmdshell using sp_configure
The xp_cmdshell option is a server configuration option that enables system administrators to control whether the xp_cmdshell extended stored procedure can be executed on a system.
SQL SERVER – 2005 – DBCC ROWLOCK – Deprecated
Title says all. My search engine log says many web users are looking for DBCC ROWLOCK in SQL SERVER 2005. It is deprecated feature for SQL SERVER 2005. It is Automatically on for SQL SERVER 2005. More Deprecated Features of SQL SERVER 2005 Refer MSDN Discontinued Database Engine Functionality in…
Read MoreSQL SERVER – Alternate Fix : ERROR 1222 : Lock request time out period exceeded
ERROR 1222 : Lock request time out period exceeded.
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