TipsMake.com - Query allows you to select and filter data from multiple tables. Queries can be saved and used anytime needed.
Query Wizard
Query Wizard will introduce each step to build a query. To execute a query using the Query Wizard:
- Click the Create tab
- Click the Query Wizard button
- Click OK .
- To select fields from different tables, click on the Table / Queries down arrow
- Click Next.
- Enter a name for the query
- Click Finish .
- The retrieval results will still display as follows:
- Open Navigation Pane
- Double click on the table name or query to view.
You can design a query with the Query Design button. To design a query using Query Design:
- Click the Query Design button on the Create tab.
- Click Add to add the table and click the Close button to close the Show Table dialog box
- Repeat the above steps for other schools
The query standard is the search for the conditions used in the query to retrieve data. You can set the standard as a specific number or data string, or data range. 'value' Only displays the record that matches the correct value (replace the word value with the word you want to find) = Equal Greater than> = Greater than or equal to <> Different Between X And Y In a range (get the value between X and Y) Is Null Null value And Only true if condition exists Or True if either condition exists Not True if 1 case is incorrect
To facilitate query:
- Click on the query you want to add conditions
- Enter the query condition for in the Criteria section