Explain the usage of coding class parameters in JCL.

1.	Explain the usage of coding class parameters in JCL.
Answer» In JCL, the CLASS is a keyword parameter that is used to classify the jobs that run in a particular OS installation. CLASS informs the operating system about the nature of the JOB that is being submitted. It prevents contention between jobs that use the same RESOURCE. A parameter like this aids in balancing the LOAD of all the jobs running in an environment. It can also be used to prioritize the execution of jobs. Syntax: CLASS= JOB-CLASS Below are the POSSIBLE values for the JOB-CLASS: Any character from A to Z Any number from 0 to 9 Example: //JCL1234 JOB ‘max021’,’Ashish’CLASS=A

Answer»

In JCL, the CLASS is a keyword parameter that is used to classify the jobs that run in a particular OS installation. CLASS informs the operating system about the nature of the JOB that is being submitted. It prevents contention between jobs that use the same RESOURCE. A parameter like this aids in balancing the LOAD of all the jobs running in an environment. It can also be used to prioritize the execution of jobs.

Syntax:

CLASS= JOB-CLASS

Below are the POSSIBLE values for the JOB-CLASS:

Any character from A to Z
Any number from 0 to 9

Example:

//JCL1234 JOB ‘max021’,’Ashish’CLASS=A

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