Query to delete duplicate Records in SQL Server 2005



Suppose we have the situation to delete some duplicate records in our table.

Suppose consider one table
create table #Test
(
EmpID int,
EmpName varchar(50)
)

–Insert the Records into #Test table
insert into #Test values(1,’Daya‘)
insert into #Test values(1,’Daya‘)
insert into #Test values(1,’Daya‘)

Now i have two duplicate records inserted and i want to delete those records.
The following query will delete the duplicate records

–Query to Delete Duplicate Records


WITH Emp AS (SELECT ROW_NUMBER ( ) OVER ( PARTITION BY EmpID, EmpName ORDER BY EmpID ) AS RNUM FROM #Test )
DELETE FROM Emp WHERE RNUM > 1

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