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Le codage des variables dans JCL suit certaines règles. Les noms de variable, qu'ils soient définis par l'utilisateur ou fournis avec le produit, acceptent jusqu'à 8 caractères alphanumériques, le premier devant être alphabétique.
Coding variables in JCL follows certain rules. Variable names, either user-defined or supplied with the product, can be of up to 8 alphanumeric characters, the first of which must be alphabetic. Variable values can be of up to 44 alphanumeric characters.
Step 1. allocate a data set to contain your JCL.....10. Step 2. edit the JCL data set and add the necessary JCL.....10
This suite of programs is a mainframe JCL example that will describe how to define (or name) a variable value and then use or change the variable by its referenced name. The source code, data sets and documentation are provided in a single zipped file called JCLSUB01.ZIP.
Coding variables in JCL follows certain rules. Variable names, either user-defined or supplied with the product, can be of up to 8 alphanumeric characters, the first of which must be alphabetic. Variable values can be of up to 44 alphanumeric characters.
MVS Job Control Language (JCL) Statements. Enters an MVS™ system operator command through the input stream. The command statement is used primarily by the operator. Use the COMMAND statement instead of the JCL command statement. Specifies an MVS or JES command that the system issues when the JCL is converted.
Substituting a variable in a procedure: procedure JCL. //MYPROC EXEC PGM=IKJEFT01,DYNAMNBR=50,REGION=4096K //DD2 DD DSN=MY.&DS2,DISP=SHR. If, as in this example, the ddname DD2 occurs in the procedure MYPROC, the entire JCL line will be substituted in the procedure, including the IBM Tivoli Workload Scheduler for z/OS substituted value of DS2:
