Deleting duplicate records using CTE

Hi Guys, here i m going to explain how you can use CTE to delete duplicate records.

suppose you have a table, like:-

M_Emp
EmpId EmpName
E001GAGAN
E001GAGAN
E001GAGAN
E002AMAN
E002AMAN
E003NAMAN

Now  Execute following query to delete duplicate records

;WITH CteExample(EmpId , RowId)
AS
(
    SELECT EmpId,ROW_NUMBER()OVER(Partition by EMPID ORDER by EMPID) RowId
    FROM M_Emp
)
DELETE FROM CteExample WHERE RowId > 1


This query will delete all the duplicate records.

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