You must follow specific steps to modify table-level information.
To modify information in the schema holder at the table level:
1. Access the Data Dictionary.
2. Select a table from the Tables list; for example, the Customer table.
3. Click Table Properties. The Table Propertiesdialog box appears:
4. Click Validation. The Table Validation dialog box appears. You can change either the validation expression or the message by typing new text in the fields.
5. Click OK to return to the Table Properties dialog box.
6. Click OK to return to the Data Dictionary main window.
