In a model based on a SAP IQ target server, you use the SAP IQ tab in the Domain Editor to manage the data type, null option, and other properties for the selected domain.
Note: The options described here are the basic options available for most physical data types. There can be more options available depending on the physical data type you assign to the domain. We recommend that you refer to your SAP IQ documentation for more information about using these properties.
To specify SAP IQ domain properties
The Domain Editor opens.
Note: Click New 
on the toolbar to create a new domain. Use the Enter filter text box to filter a very large list of domains to quickly locate the one that you want to define.
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.
Lets you specify a null option.
Lets you enter an estimated average width for columns if variable width is allowed based on the data type you assigned. If it is not allowed, an error is displayed in the Details section at the bottom of the editor. You can later use the Volumetrics dialog to calculate table and database size estimates based on these and other values.
Lets you enter the estimated percentage of nulls used for columns if the option is available. Use whole numbers. You can later use the Volumetrics dialog to calculate table and database size estimates based on these and other values.
Lets you enter the IQ UNIQUE value for columns.
Domain properties are defined and the Domain Editor closes.
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