Gokul's Blog

Delete Duplicate records in Sql

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Reference Source link : http://blog.sqlauthority.com/2009/06/23/sql-server-2005-2008-delete-duplicate-rows/


/* Delete Duplicate records */
WITH CTE (COl1,Col2, DuplicateCount)
AS
(
SELECT COl1,Col2,
ROW_NUMBER() OVER(PARTITION BY COl1,Col2 ORDER BY Col1) AS DuplicateCount
FROM DuplicateRcordTable
)
DELETE
FROM CTE
WHERE DuplicateCount > 1
GO

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