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In Microsoft Access, you might want to perform operations on not just one single record, but on a group of records. You can simply create fields that perform operations per row or on every record. But what happens when you perform calculations on a group of records? This is where Aggregate queries come in handy.
An Aggregate query lets you carry out calculations on record groups rather than perform individual operations, and because of that, it is also referred to as Summary query. It considers the total, subset, or gross amount of records.
In performing calculations on a group of records, there are numerous operations you can follow. Some of these operations are explained below.
Here’s a brief explanation on how you can apply the calculation process on a group of records.
3. The Show Table dialog box will display. To add the table or tables that you want to use, double-click the table name. Once you’re done adding the tables, click Close. The tables will be displayed in the query grid.
6. Another row will be added just below the Table: row in the design grid.
7. The Total: row allows you to choose which operation to use in every field you selected. If you click the button, all choices will be displayed.
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