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From: Omi on 19 May 2010 14:22
I want to append records to tableB only when the key field in tableA does not
match the key field in tableB
From: Jeff Boyce on 19 May 2010 14:33
Omi

We're not there. We can't see your tables or relationships.

Are you saying that you have two tables with identical structure, and you're
adding to one table only if the record isn't already in another table? If
so, why?! In a well-normalized relational database, you usually don't
need/have multiple tables with the same structure.

More info, please...

Regards

Jeff Boyce
Microsoft Access MVP

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Disclaimer: This author may have received products and services mentioned
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does not constitute endorsement thereof.

Any code or pseudocode included in this post is offered "as is", with no
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possible/necessary.

"Omi" <Omi(a)discussions.microsoft.com> wrote in message
news:C6E19F9C-48B0-43E9-A9D0-E373592A8918(a)microsoft.com...
>I want to append records to tableB only when the key field in tableA does
>not
> match the key field in tableB


From: Douglas J. Steele on 19 May 2010 14:43
INSERT INTO TableB (ID, Field1, Field2, Field3)
SELECT ID, Field1, Field2, Field3
FROM TableA
WHERE TableA.ID NOT IN (SELECT DISTINCT ID FROM TableB)

--
Doug Steele, Microsoft Access MVP
http://www.AccessMVP.com/DJSteele
(no e-mails, please!)

"Omi" <Omi(a)discussions.microsoft.com> wrote in message
news:C6E19F9C-48B0-43E9-A9D0-E373592A8918(a)microsoft.com...
>I want to append records to tableB only when the key field in tableA does
>not
> match the key field in tableB


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