One of the most powerful features that Database Manager provides is querying a database. A query is a request to display specific information. For example, you might want to display all the Analog Input blocks with a scan time of five seconds or less. Alternatively, you might want to display every block in security area Packaging for a specific device driver. After you create a query, Database Manager selects the blocks from the database that match the request and displays them, replacing any previously displayed blocks.
The following topics provide more detailed information about querying and sorting a database.
- Understanding Query Syntax
- Editing a Query
- Refining and Expanding a Query
- Saving and Loading a Query
- Overriding the Default Query
- Understanding Sort Orders
- Saving and Loading a Sort Order
- Changing the Default Sort Order
