In a JCL job, you need to execute a program only if a specific dataset exists. How would you achieve this using JCL statements?
- Use the IF/THEN construct to check the existence of the dataset
- Include a DD statement for the dataset with DISP=MOD, indicating it's optional
- Use a DISP=SHR parameter for the dataset, allowing the program to access it conditionally
- Employ the REPRO command within the program to handle dataset existence dynamically
By using DISP=MOD in a DD statement, the dataset is treated as optional. If it exists, it will be processed; otherwise, the job will continue without interruption.
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