Logical predicates are used to form conditional expressions that evaluate to true or false in a manner similar to comparison operators. Double-click on Logical to view a list of supported operators.
Teradata Database
The following figure shows the Logical operators available when connected to a Teradata database.
Variable Creation > Input > Variables: SQL Elements pane - Logical (Teradata)

Aster Database
The following figure shows a subset of the Logical operators available when connected to an Aster database.
Variable Creation > Input > Variables: SQL Elements pane - Logical (Aster)
