Using the IF/THEN/ELSE/ENDIF statement construct

You can conditionally execute job steps with the IF/THEN/ELSE/ENDIF statement construct. Use this statement construct instead of the COND parameter to conditionally execute job steps based on:

Return codes
Abend conditions
System or user abend completion codes.

The IF/THEN/ELSE/ENDIF statement construct tests whether these conditions occurred in the job, a step, or a procedure step prior to the IF/THEN/ELSE/ENDIF statement construct.

You can code the IF/THEN/ELSE/ENDIF statement construct anywhere in the job after the JOB statement. Code it as follows:

   //[name]     IF   (relational expression)   THEN
   //STEPTRUE   EXEC
   //[name]     ELSE
   //STEPFALS   EXEC
   //                     ENDIF

The relational expression consists of:

Comparison operators
Logical operators
Not (¬) operators
Relational expression keywords.

Comparison operators compare a relational expression keyword to a numeric value. The comparison results in a true or false condition. Use the logical operators & (AND) and | (OR) in complex relational expressions, to indicate that the system evaluates the Boolean result of two or more relational expressions. The ¬ (NOT) operator reverses the testing of the relational expression. Relational expression keywords indicate that you are evaluating a return code, abend condition, or abend completion code.

Either the THEN clause or ELSE clause must contain at least one EXEC statement. The EXEC statement indicates a job step that the system executes based on its evaluation of the relational expression. A THEN or ELSE clause that does not contain an EXEC statement is a null clause.

You can nest IF/THEN/ELSE/ENDIF statement constructs up to 15 levels of nesting.