You can use Sybase Central to create a domain or assign it to a column.

To create a new domain (Sybase Central)

1. Connect to the database as a user with DBA authority.

2. In the left pane, right-click Domains and choose New » Domain.

3. Follow the instructions in the Create Domain Wizard.

To assign a domain to a column (Sybase Central)

1. Connect to the database as a user with DBA authority.

2. In the left pane, double-click Tables.

3. Click the table.

4. In the right pane, click the Columns tab.

5. Select a column and in the Data Type field click the ellipsis (three dots) button.

6. Click the Data Type tab and select Domain.

7. In the Domain list, select a domain.

8. Click OK.