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Microsoft Access - Class 3 - Part XII

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Using Multiple Criterias

There are two ways that multiple criteria may be used :

1. Logical AND includes the record in the dynaset only if all the criteria are true. Logical AND is exclusive. For each new criterion you add, there will be fewer records that match all the criteria.
 
2.
Logical OR includes the record if any one of the criteria is true. Logical OR is inclusive. For each new criterion you add, there will be more records that match at least one criterion.

You can combine logical AND with logical OR by entering several rows of criteria, each with criteria entered under several fields.

You can create most queries you want by entering criteria in the Design grid. However, there are cases where it is easier or more powerful to use logical operators.

 


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