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microsoft access training course - update query

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microsoft access training course - Update Query

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Dag has attended:
Access Advanced course

Update Query

How do you ensure a query matching 2 or more feilds in multiple tables has not fed back any duplicates?

RE: Update Query

Hi Daq

Firstly if you SQL is structured correctly you shouldn't return too many duplicates. However if you are getting duplicates there is an SQL command called DISTINCT.

Hope this helps
David

Access tip:

Action queries

Unlike select queries you cannot use action queries as a data source for the use with forms or reports,as they do not return a dataset that can be read.

View all Access hints and tips

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