Editing the WHERE clause
When you use the Column Selection window to select a column or columns for the WHERE clause, the selected columns appear in the Where text box.
In the Where text box, as shown
in the figure below, the =? symbols indicate where
you must provide match conditions. The following figure shows the
result when you choose zipcode and customer_num from
the customer table.
Figure 1. The Where text box entry after you use the Table button
To edit the WHERE clause: