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Additional info for ACTUALTESTS Oracle 1Z0-147 Exam Q and A 04 13 05
Compound Criteria and the Logical Operators 2 For many criteria, a single expression just doesn’t do the job. 1, I selected all the records in the Products table with no inventory by adding the UnitsInStock field to the design grid and entering =0 in this field’s Criteria cell. That works, but what if you want to select only the out-of-stock products that haven’t been reordered? For queries like these, you need to set up compound criteria where you enter either multiple expressions for the same field or multiple expressions for different fields.
Access tacks on the record to the end of the table. Working with a Query Dynaset 33 Deleting a Record If you need to delete one or more records from the dynaset (and, therefore, from the underlying table), follow these steps: 1. Select the record or records you want to delete. 2. Press Delete (or click the toolbar’s Delete button). Access displays a dialog box telling you how many records will be deleted and asking you to confirm the deletion. 3. Choose Yes. Formatting the Datasheet The standard datasheet displayed by Access is serviceable at best.
That works, but what if you want to select only the out-of-stock products that haven’t been reordered? For queries like these, you need to set up compound criteria where you enter either multiple expressions for the same field or multiple expressions for different fields. This section covers the two basic types of multiple criteria: And criteria and Or criteria. Entering And Criteria You use And criteria when you want to select records that satisfy two or more different expressions. So given expression1 and expression2, a record appears in the dynaset only if it satisfies both expression1 and expression2 (which is why they’re called And criteria).