Sql-Server

NOT IN vs NOT EXISTS

NOT IN vs NOT EXISTS

Which of these queries is the quicker NOT EXISTS Choice ProductID ProductName FROM NorthwindMerchandise p Wherever NOT EXISTS Choice 1 FROM NorthwindCommand
Selecting COUNT with DISTINCT

Selecting COUNT with DISTINCT

Successful SQL Server 2005 I person a array cmproduction that lists each the codification thats been option into exhibition The array has a ticketnumber
What is with nolock in SQL Server

What is with nolock in SQL Server

Tin person explicate the implications of utilizing with nolock connected queries once you ought toshouldnt usage it For illustration if you person a banking