Physical Modeling › Columns › Assign a Domain to a Column

Previous Topic: Delete a Column

Next Topic: Assign Default and Validation Constraints to a Column

Assign a Domain to a Column

You can assign a domain to a column using the Table Column Editor in a physical model.

When you attach a domain to a column, you specify physical data type for the selected column. Standard domains include: Default, Blob, Datetime, Number, and String. This list can also include user-defined physical data types that you create in the Domain Editor.

To assign a domain to a column

  1. Right-click the table that contains the column for which you want to assign the domain and click Column Properties.

    The Table Column Editor opens.

  2. Select the column name in the Navigation Grid for which you want to assign the domain and click the General tab.
  3. Work with the following options:
    Domain Parent

    Lets you select a domain from the list to attach it to the selected column. The Domain Parent option contains a toolbar that includes the following options:

    Attribute Editor General Tab_Domain Option_Sort Button

    Lets you specify to sort the list of domains alphabetically, in reverse alphabetical order, or by domain hierarchy.

    Attribute Editor General Tab_Domain Option_Restore Inheritance from Definition Button

    Restores inheritance from definition. If this column is a FK, the domain may be inherited or overridden to a different domain.

    Attribute Editor General Tab_Domain Option_Domain Editor Button

    Opens the Domain Editor in physical edit mode.

    Physical Name

    Displays the physical name. You can change the name in this field or click the Text Editor button to open a larger edit window.

    Physical Data Type

    Specifies the physical data type for the column. You can change the data type using the drop-down. The drop-down list contains the data types related to the current domain.

    Null Option

    Displays the column null option. You can change the null option using the drop-down control. You can also click the Inheritance button to either inherit or override the column's null option. This button changes to provide you with a visual cue of the current inheritance setting for the column null option.

  4. Click Close.

    Column domain assignment is saved and the Table Column Editor closes.

Note: If you do not want to associate the selected domain with the corresponding attribute in the logical model, click the Domain Editor button, and select the Physical Only check box in the General tab. You can then assign a different, logical-only domain to the attribute in the Attribute Editor.

More information:

Assign a Domain to an Attribute