When you have selection criteria for more than one field in a query, or you would like to give the user a combo box to select the criteria from, here's how to build a form to collect the input and then refer back to those values in the form.
1. Say you have a table with two fields (Table1, FieldA, FieldB). 2. Create a blank form with no underlying table or query (Form1). 3. Add 2 comboboxes (cboValueA & cboValueB) to your form using the wizard. 4. To write your query, go into design view for a new query. 5. Click on the View button (the leftmost button) on the query toolbar. 6. Paste in this SQL statement: SELECT Table1.FieldA, Table1.FieldB FROM Table1 WHERE (((Table1.ValueA)=[forms]![Form1]![cboFieldA]) AND ((Table1.FieldB)=[forms]![Form1]![cboFieldB])); 7. Click on the Design View button again to return to the Grid and close (save) the query. 8. Open Form1 and drag a button to your form using the wizard 9. Select Miscellaneous, Run Query, Query1. 10. Test! Test! Test!