Procedure Definition Language Concepts and Language Elements › PDL Language Elements › ConditionName Flag

ConditionName Flag

The 1 to 32 character name of the condition that exists when a designated field has a given value. Condition names are defined with a type of C.

You can define RED, YELLOW, and BLUE as condition names subordinate to W_HUE with values of R, Y, and B, respectively. For example, consider the following working data definition:

1     W_HUE        X 1
        RED        C       'R'
        YELLOW     C       'Y'
        BLUE       C       'B'

RED is true when W_HUE='R', YELLOW is true when W_HUE='Y', and BLUE is true when W_HUE='B', as shown in the following chart.

If W_HUE is defined as a nullable field, then you can define NO_HUE as a condition with the value NULL. For example, consider the following working data definition.

1       W_HUE        X 1
          RED        C      'R'
          YELLOW     C      'Y'
          BLUE       C      'B'
          NO_HUE     C      NULL

NO_HUE is true if W_HUE is NULL. Otherwise, it is false. If RED is defined with the value 'R', RED is true when W_HUE='R', unknown if W_HUE IS NULL, and false otherwise, as shown in the following chart.

Condition names cannot be subordinate to date fields or flags. Like field and group names, they must be qualified if they are not unique. If the field where a condition name is subordinate is subscripted, the condition name also must be subscripted.