Defining PostgreSQL Domains

The following properties are applicable to a PostgreSQL Domain object.

Tab

Section

Property

Description

Additional Information

 

 

Physical Name

Specifies the physical name of the domain

 

 

 

Domain Parent

Lets you select a domain from the list and attach it to the selected domain as a parent.

 

 

 

Physical Data Type

Lets you select a data type from the drop-down list to apply to the selected domain.

If the selected data type requires a value for precision, scale, or both, enter the value inside the data type parentheses. For example, you can select the DECIMAL() data type and specify a precision of 2 and a scale of 10 inside the parentheses to assign the data type DECIMAL(2,10) to the selected domain.

 

 

Schema

Specifies the schema of the database to which the domain belongs

Select the schema from the drop-down list or click New icon in property editors to create a new object to create a new one

 

 

Generate As Udd

Specifies whether the selected domain is generated as a user-defined domain

 

 

 

Physical Only

Specifies that the selected domain is only available in the physical model

 

General

 

Domain Parent

Lets you select a domain from the list to attach it to the selected domain as a parent

 

 

Name

Specifies the name of the domain

 

 

Physical Name

Specifies the physical name of the domain. Change the physical name of the domain in this field.

 

 

Harden Strategy

Specifies several parameters and practices aimed at enhancing security and reliability

Inherit: Specifies to inherit the domain physical name

Override: Specifies to override inheritance for the domain physical name

Harden: Specifies to harden the domain physical name

 

Column Name

Specifies the name of the column

 

 

Physical Only

Specifies that the selected domain is only available in the physical model

 

PostgreSQL

Domain Properties

Schema

Specifies the schema of the database to which the domain belongs

Select the schema from the drop-down list or click New icon in property editors to create a new object to create a new one.

Collation

Specifies an optional collation for the domain. If no collation is specified, the underlying data type's default collation is used. The underlying type must be collatable if COLLATE is specified.

 

Null Option

Specifies the usage of the NULL clause for the selected domain

Null: Indicates that null values are allowed

Not Null: Indicates that null values are not allowed

Constraint

Check Constraint

Use Inherited Constraint

Specifies whether the validation rule is inherited from the parent domain

 

Name

Specifies the name of the inherited validation rule to be attached to the selected domain

 

Validation

Specifies the validation rule to attach to the selected domain

Available when Use Inherited Constraint is not selected.

Default

Use Inherited Default Value

Specifies whether the property is inherited from the parent domain

 

Name

Specifies the name of the default value to be attached to the selected domain

 

Default

Specifies the default value to attach to the selected domain

Available when Use Inherited Default Value is not selected.

Comments

 

Comments

Allows you to enter or edit a non-inheritable comment for the selected domain

You can also use the toolbar to cut, copy, paste, reset properties to restore inheritance and edit or check the spelling of text.

 

Comment Inherited By Columns

Allows you to enter or edit the definition that the column inherits when associated with the selected domain. If you do not want to override existing column comments, use the %AttDef macro.

 
  1. (Optional) Click the Where Used tab to view where the object is used within the model.
  2. (Optional) Click the UDP tab to work with user-defined properties for the object.
  3. (Optional) Click the Notes tab to view and edit user notes.
  4. (Optional) Click the Extended Notes tab to view or edit user notes.
  5. Click Close.

The domain is defined, and the PostgreSQL Domain Editor closes.