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Delete duplicate records from a table

Deleting duplicate records from a table requires two steps. First, you create a copy of the structure of the table that contains duplicates, and then make primary keys of all the fields that contain duplicates. Second, you create and run an append query from the original table to the new table. Because fields that are primary keys can't contain duplicate records, this procedure produces a table without duplicate records.

This is the logic behind the Remove Duplicate Records tool. It creates mentioned actions in the background and allows you to select which columns in the table should contain unique data.


Related Topics:

Remove Duplicate Records

Remove Duplicate Recipients

Customized Grid Layouts

Opening and viewing tables and views

Create a shortcut to a table or a view on the Shortcut Bar

Change the appearance of tables and views

Guidelines for naming objects

Null values

Tables

Views

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