Question

i have two Identical tables in my SQL database these tables consist of Item Code and QTY each.

I need to see which items in both tables that have different quantities AND the items that

don’t exist in the other table

I tried using FULL OUTER JOIN ON ITEMCODE=ITEMCODE AND QTY<>QTY

IT IS NOT WORKING

the result i am getting is something like that:

http://www.sendspace.com/file/nmb7yu

Answer 1

Try something like this:

SELECT  c.Code ,
        t1.Code ,
        t1.Qty ,
        t2.Code ,
        t2.Qty
FROM    ( SELECT    Code
          FROM      dbo.Table1
          UNION
          SELECT    Code
          FROM      dbo.Table2
        ) c
        LEFT OUTER JOIN dbo.Table1 t1 ON c.Code = t1.Code
        LEFT OUTER JOIN dbo.Table2 t2 ON c.Code = t2.Code
WHERE   t1.Code IS NULL
        OR t2.Code IS NULL
        OR t1.Qty <> t2.Qty

Since you have a test for inequality in the WHERE clause you’re implicitly only including items that are in both tables. This way you include items that are in one table, but not the other, or have the difference in quantity.