ms access course - Duplicates

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Wed 7 Mar 2007, 09:38 Delegate Navinder said...

Navinder has attended:
Access Intermediate course
Access Advanced course

Duplicates

How can you remove duplicate records brought back by queries

Mon 12 Mar 2007, 09:58 Trainer David said...

Ms Access SQL Statements

Hi Navinder

Duplicates arise due to the type of query that you are running, a few types are left join, right join and union. If you are getting duplicates, that could mean that you are running the wrong type of query for the results that you want. However other possibilities are that you may need further where clauses within the SQL statement. A simpler method to to add a unique clause in to the SQL.

Hope this helps
David

Access tip:

Splittng a database

Split your database into two (at least).

Keep all of your code, forms, reports, etc. in one 'code' database and all of your tables in another 'data' database which is then linked to the 'code' database.

This makes modifications, updates and back-ups that much easier and allows you to work on a new version of your 'code' database without affecting existing users. It also makes it easier should you wish to convert a single user databases into a multi-user networked version.

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ms access course - Duplicates

Duplicates

Ms Access SQL Statements

Access articles

Access tip:

Splittng a database