Unique constraints ensure that the data contained in a column or a group of columns is unique with respect to all the rows in the table.
Uniques are managed on the Uniques tab of the Table Designer. Just simply click/double-click an unique field for editing. Using the toolbar below, allowing you to create new, edit and delete the selected unique field.
Add Unique
To add an unique
- Open the table in the Table Designer.
- Open the Uniques tab.
- Right-click and select the
Add Unique from the popup menu or click the
Add Unique from the toolbar.
- Edit unique properties.
Edit Unique
To edit an unique
- Open the table in the Table Designer.
- Open the Uniques tab.
- Just simply click on the unique to edit.
Delete Unique
To delete an unique
- Open the table in the Table Designer.
- Open the Uniques tab.
- Right-click on the unique to delete and select the
Delete Unique from the popup menu or click the
Delete Unique from the toolbar.
- Confirm deleting in the dialog window.
See also:
Setting Unique Name and Field Names