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How to remove duplicate rows from table in sql server

Posted By: rakesh On:6/7/2012 4:54:09 AM in:Source Codes Category:Sql Server Hits:3068
How to remove duplicate rows from table in sql server

--to remove duplicate employee from tblemployee

In below example tblEmployee is table name and EmployeeNo is a columns

declare @ID varchar(100)
declare @Count int
declare CursorDuplicates Cursor for
SELECT EmployeeNo FROM tblEmployee
open CursorDuplicates 
fetch next from CursorDuplicates into @ID 
while @@fetch_status=0
select @Count = count(EmployeeNo) from tblEmployee where EmployeeNo = @ID
if @Count > 1 
DELETE tblEmployee WHERE CURRENT OF CursorDuplicates
fetch next from CursorDuplicates into @ID
close CursorDuplicates 
deallocate CursorDuplicates
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Rakesh Sinha
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