Mapping Tables

Jan 2, 2005

hi,
I have two tables named "Uni" and "MainTable"

"Uni" has two fields, named "A" and "B".
"MainTable" has three fields, named "aa", "bb" and FinalAns"

Uni
A | B
-------------
001 | 444
004 | 999
042 | 129


MainTable
aa |bb |FinalAns
--------------------------------
001 |XX|? - should be 444
042 |XX |? - should be 129


Below queries code is written by me:

UPDATE MainTable set [MainTable].[FinalAns] = [Uni].[B]
WHERE [MainTable].[aa]=[Uni].[A]

But it does not works, it prompted me "Enter Parameter Value Uni.B" and then "Enter Parameter Value Uni.A"

Can anyone teach me how to solve my problem? - can be using macro or vb code or queries.

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