What is a MAP? It is a screen representation of a functionality from where users can access(to perform different functionalities) it. In other words it is nothing but the front end for the mainframe applications. Example -> A Bank Customer Inquiry Screen from where the bank employees/Users access customer details by entering the Customer number
JOBLIB and STEPLIB in JCL both are used to specify the load libraries so that that the programs that are being used in that JCL/JOB are searched in these libraries. Generally z/OS searches for the programs load module in the default system libraries where actually the IBM supplied programs are stored. Specifying JOBLIB/steplib makes the
Sample RUN JCL for a COBOL Program – In Mainframes area any batch COBOL program needs to have its corresponding JCL to run it without which it can not be executed. As we know JCL is a JOb Control Language which is used to run and control the execution of the programs. So JOB written
COBOL Batch program(example) is a cobol program that runs in a bath mode. Unlike the Online programs, batch programs runs in background. To execute any Batch program a JOB written in JCL(Job Control Language) is required. This JOB is also used to specify any files that are used in that program. Generally Batch programs are
Examples of IEFBR14 in JCL: It is an IBM utility used in JCL which does nothing so it is also considered as a DUMMY utility. IEFBR14 does nothing but when running this utility other systems services gets invoked which can perform useful tasks like allocating, creating data sets or deleting data sets etc. So this
This topic covers the JCL Restart parameter with Examples.As the name suggests this is used to Restart a JOB from any particular step instead of starting it from the beginning. This is very useful for the jobs with multiple steps and abends after executing few steps. In this case as few job steps were already
JOB Card or Statement in JCL is the first statement which indicates the starting of that JOB. Operating system identifies the beginning of the job using this statement and also it tells the OS on how the job should be processed. This Card can be coded with 20 different Parameters to instruct the operating system
77 Level Number Uses, significance:77 is a special Level number in COBOL which is used to declare the Individual Elementary data items. Of course, Individual elementary data items can be declared using 01 level but 77 declared fields does not allow any sub ordinate data field declarations. These have been very useful in earlier versions
STOP Run Vs GOBACK Vs Exit Program in COBOL: Stop Run, Go Back and Exit statements are to give control back from the program (in which these are coded as a last statement) to where this program is being called. All works in the same by giving the control back but one gives it to OS where
COBOL ACCEPT Statement: Accept statement in COBOL with examples – It is used to receive the data that has been sent from outside of that program. Data can be sent from any Terminal or from JCL or from system defined items like date functions. ACCEPTING multiple records from input is also possible. Accepting Data from
