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Comment/ Un comment  multiple lines in JCL The following CLIST code can be used to comment/uncomment JCL code with ease. The instructions to use this are provided in the comments. /********************************************************************** /* TITLE      : JCOM /*——————————————————————- /* FUNCTION   : TO BLOCK COMMENT OR UNCOMMENT THE JCL /*——————————————————————- /* AUTHOR     : mainframewizard.com /*——————————————————————- /* DESCRIPTION: THIS […]

At our mainframe shop, there are many jcl’s which use BLKSIZE=0 for the datasets which are cataloged by the JCL.  From what I learnt during my training the BLKSIZE has to be a multiple of  and would mean the number of logical records to be clubbed in a physical record to make one block of I/O But

One of interview question on Jcl, I faced was what is the maximum length of data that can be passed  as Parm from JCL to COBOL. As I have read somewhere that its 100 bytes of data that is maximum that can be passed from JCL to COBOL program, but then the interviewer confused me

Mainframe saves various details against a member or physical sequential file like version, user, create date etc. These details can however be changed by the following methods 1. Using the Rexx code /* rexx */                                                dsname      = “USERID.ABC.XYZ” /* Work PDS    */                               usrid            = “USER1”    /* User id to be updated

Abstract The objective of this document is to explain the model of creating a panel based user interface on mainframes. The ingredients of this hot recipe will be CLIST, ISPF PANELS, ISREDIT MACROS, SKELS, JOBS, and MESSAGES etc. Hope you have mouthwatering start!! The 3 Questions Before you start, find answers to these questions 1.

Consolidated Report on Production Cycle. Almost all projects which run on mainframe have a requirement by the client to gather necessary details after the batch cycle is over. These vital statistics are used by the client to measure the performance of the project as well as to take measures to avoid any delays in Online

Delete data sets cataloged in a JCL This one I developed I guess around 5 yrs back, there were lot of JCL’s in the system, poorly written not to have a delete Step at the top for deleting the datasets cataloged in the JCL. Each time I had to run the job I had to

Personal Job Scheduler This is my personal favorite. You would have heard of a personal Job scheduler provided on mainframes.  I think not all mainframe installations have these personal Job schedulers( PJS). Similar was the case with me, when I wanted to schedule a job to run on a particular time, but ALAS!! I did

Comment/Un comment Multiple lines in COBOL code This tool can come handy if you have to do a lot of commenting and un commenting in a COBOL module. Doing it manually is not my way so here’s another freebie for all you guys hungry for mainframe tools. To use this clist you need to copy

Hello and welcome to mainframewizard.com Mainframewizard.com is a site for both beginner and Pro, who are looking for ABC(All the Brilliant Content) of mainframes You would have heard lot of people saying that mainframe is obsolete and is an outdated technology. What I believe is if we couple mainframes with windows technology (scripting languages) we