Can we use if else in JCL?
Can we use if else in JCL?
IF THEN ELSE ENDIF construct is used to conditionally execute job steps within a job. A job step execution can be controlled based on the return code of the previous step(s) using the COND parameter and IF-THEN-ELSE-ENDIF construct.
What is cond parameter conditions in JCL?
COND=ONLY. When COND=ONLY is coded, the current job step is executed, only when any of the previous steps abnormally terminate.
What is the function of the If Then endif statement?
Purpose: Use the IF/THEN/ELSE/ENDIF statement construct to conditionally execute job steps within a job. The IF statement is always followed by a relational-expression and a THEN clause. Optionally, an ELSE clause can follow the THEN clause.
How do you execute only even steps in JCL?
Resolution to run only even steps In JCL, you control steps execution by three methods. Those are COND, IF ELSE and RESTART parameters. The syntax for COND: COND=([(value,operator[,stepname])…]
What would happen if cond parameter is present on both job and exec statement?
The COND parameter on both the JOB and EXEC statements is useful to set some conditions for all steps in the job and other conditions for particular steps. No COND parameters on JOB or EXEC statements means the system does not perform any return code tests, but tries to execute each step in the job.
How do you use if and if end?
IF-THEN-ELSE-END IF
- the logical-expression is evaluated, yielding a logical value.
- if the result is . TRUE., the statements in statements-1 are executed.
- if the result is .
- after finish executing statements in statements-1 or statements-2, the statement following END IF is executed.
What is IF THEN END IF structure?
The execution of this IF-THEN-ELSE-END IF statement goes as follows: the logical-expression is evaluated, yielding a logical value. if the result is . TRUE., the statements in statements are executed, followed by the statement following the IF-THEN-END IF statement.
How do I bypass the first step in JCL?
Re: Jcl without first step execution 6.3 COND Parameter on the First Statement in a Job The system evaluates a COND parameter on the first EXEC statement in a job as false. However, you can use an IF statement before the first EXEC statement in a job to bypass the step.
What are the diff ways to put condition for step in JCL?
COND= (RC, RO): COND= (RC, RO) is used to execute the step with COND parameter based on the condition code returned by previous step. If COND= (RC, RO) is true then the step with COND parameter execution will get bypassed. If COND= (RC, RO) is false then the step with COND parameter will get executed.
What is IF-THEN-ELSE in JCL?
JCL – IF/THEN/ELSE/ENDIF Statements Another approach to control the job processing is by using IF-THEN-ELSE constructs. This gives more flexibility and user-friendly way of conditional processing. In JCL, IF condition is better than the COND parameter because of 2 reasons –
What is the difference between Cond and if condition in JCL?
In JCL, IF condition is better than the COND parameter because of 2 reasons – IF condition in JCL is easy to code as compared to the COND parameter. JCL programmers with less experience find COND parameter little confusing and boring and it is easier to read and understand IF-ELSE-END-IF condition in JCL.
How do I perform conditional processing in a JCL?
The Job Entry System uses two approaches to perform conditional processing in a JCL. When a job completes, a return code is set based on the status of execution. The return code can be a number between 0 (successful execution) to 4095 (non-zero shows error condition).
What is the basic syntax of a JCL COND parameter?
Following is the basic syntax of a JCL COND Parameter: COND= (rc,logical-operator) or COND= (rc,logical-operator,stepname) or COND=EVEN or COND=ONLY Here is the description of parameters used: rc : This is the return code
