CHAPTER - 2 Job Statement
As we discussed in Chapter-1 , Three important input operations are 1. JOB 2. EXEC 3. DD Now let us look at JOB statement Syntax of JOB Statement
Image
EXPLANATION to keyword parameters
CLASS PRTY MSGCLASS MSGLEVEL TYPRUN NOTIFY
1. CLASS - Some jobs can be short running, some jobs may take more time other
may use havy resources. CLASS keyword parameter is used to tell to
OS about the nature of job we are submitting.
Syntax -> CLASS=jobclass
Valid values -> Any alpha betical character between A - Z or
numbers between 0 - 9
Example JCL -> //MYJOB JOB (3345Y),'KRISHNA REDDY',CLASS=K
2. PRTY - It is related to CLASS parameter. It assigns priority to jobs which
belong to the same class. Higher number takes precedence over the
job with lower number. A job with priority of 12 will run before a
job with priority 5.
Syntax -> PRTY=priority
Valid values -> Any value between 0 to 15
Example JCL -> //MYJOB JOB (345Y),'KRISHNA REDDY',CLASS=8,PRTY=6
3. MSGCLASS - The MSGCLASS parameter determines the output device to which
system messages and JCL messages are written
Syntax -> MSGCLASS=output-class-name
Valid values -> Any alpha betical character between A - Z or
number between 0 - 9
Example JCL -> //MYJOB JOB (456Y),'KRISHNA REDDY',CLASS=7,PRTY=5,MSGCLASS=A
4. MSGLEVEL - is used to tell JCL, which messages to be printed in the device
specified in MSGCLASS parameter
Syntax -> MSGLEVEL=(statements,messages)
Valid values -> Statements may be the number 0,1,2 and messages can be 0 or 1
STATEMENT
0 - Related to job statements only printed
1 - jcl will be printed
(which includes all cataloged/symbolic parameters)
2 - only the input jcl statements being printed
MESSAGES
0 - Allocation/termination messages will be printed
If job terminates abnormally
1 - Allocation/termination messages will be printed
regardless of whether the job terminates normally or
abnormally.
Example JCL -> //MYJOB JOB (3456Y),'SR',CLASS=8,MSGCLASS=S,MSGLEVEL=(1,1)
5. TYPERUN - The TYPRUN parameter is used to specify whether job is to be held
until further notice or for syntax checking
Syntax -> TYPRUN=HOLD - Job held until further notice
or
TYPRUN=SCAN - Check Jcl for syntax checking
Example JCL -> //MYJOB JOB (3456Y),'KRISHNA',CLASS=8,PRTY=9,TYPRUN=HOLD
6. NOTIFY - The NOTIFY parameter is used to direct the system, where it has to
send the success/failure message after completing the job.
Syntax -> NOTIFY=userid/&SYSUID
EXAMPLE JCL -> //MYJOB JOB (3456Y),'KRISHNA REDDY',CLASS=8,NOTIFY=&SYSUID
&SYSUID - the userid from which user it has been submited
//MYJOB JOB (34W5),'KRISHNA REDDY',CLASS=8,NOTIFY=ERT54
It send the sucess/failture message to ERT54 userid