I have two tables : Product and ProductRateDetail. The parent table is Product. I have duplicate records in the product table which need to be unique. There are entries in the ProductRateDetail table which correspond to duplicate records in the product table.

Somehow I need to update the ProductRateDetail table to match the original (older) ID from the Product table and then remove the duplicates from the product table. I would do this manually but there are 100's of records. i.e. something like

UPDATE tbl_productRateDetail SET productID = (originalID from tbl_product)

then something like

DELETE from tbl_product WHERE duplicate ID

and only delete the recently added ID data

example: (sorry can't work out this formatting thing)

tbl_Product

select * from dbo.Product where ProductCode = '10003'

ProductID    ProductTypeID    ProductDescription       ProductCode     ProductSize
365          1             BEND DOUBLE FLANGED      10003           80mmX90deg
1354            1             BEND DOUBLE FLANGED      10003           80mmX90deg

tbl_ProductRateDetail

SELECT * FROM [MSTS2].[dbo].[ProductRateDetail] WHERE ProductID in (365,1354)

ProductRateDetailID ProductRateID   ProductID   UnitRate
365                    1               365            16.87
1032                   5               365            16.87
2187                   10              365            16.87
2689                   11              365            16.87
3191                   12              365            16.87
7354                   21              1354           21.30
7917                   22              1354           21.30
8480                   23              1354           21.30
9328                   25              1354           21.30
9890                   26              1354           21.30
10452                  27              1354           21.30

Please help!