When you determine where and when you want a set of JCL to run, you will consider using batch jobs or started tasks. Batch jobs are scheduled by a job entry subsystem (JES) and are scheduled to run based on the resources they require and their availability, or based on controls you put on the batch system. Controlling where and when a batch job runs is more complex than using a started task. A started task is a set of JCL that is run immediately as the result of a START command. Started tasks are generally used for critical applications. The advantages to using started tasks are:
For more information about system symbols and JCL symbols.
Note: In the past, some users set up batch jobs that controlled their programs. Users allocated a PDS, added JOB JCL to a member of the PDS, and then read the PDS member into an internal reader; these actions initiated a batch job for the started task. While this method afforded some advantages, it did not allow for symbolic support.
IBM-JCL Related Interview Questions
|VSAM Interview Questions||IBM - VSAM Interview Questions|
|IBM-CICS Interview Questions||JCL Interview Questions|
|IBM DB2 Interview Questions||COBOL Interview Questions|
|DB2 Using SQL Interview Questions||IBM-JCL&VSAM Interview Questions|
|IMS/DB Interview Questions||Mainframe DB2 Interview Questions|
Job Control Statements
Job Control Tasks
Format Of Statements
Syntax Of Parameters
Procedures And Symbols
Jcl Command Statement.
Special Dd Statements
If/then/else/endif Statement Construct
Output Jcl Statement
Xmit Jcl Statement
Jes2 Control Statements
Jes3 Control Statements
All rights reserved © 2018 Wisdom IT Services India Pvt. Ltd
Wisdomjobs.com is one of the best job search sites in India.