This screenshot shows the Edit Table dialog box in SQL Developer. In the Schema field, NICK is selected. In the Name field, PURCHASE_ORDERS is entered. In the Table Type field, Normal is selected. Under the Search field, Check Constraints is selected. To the right of the Search field, in the Check Constraints text box, PURCHASE_ORDERS_CHK1 appears. This is the default system-supplied name for the new check constraint being added. In the Name field in the Check Constraints section, PO_CHECK_RCVD_DATE has been entered. This user-supplied constraint name will overwrite the default system-supplied constraint name that appears in the Check Constraints text box. In the Condition section, the text PO_DATE_RECEIVED >= PO_DATE appears.