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Mainframe

Special-Names in COBOL :: A Fancy thing in Vintage Language ?

It bring you out of the dull zone when you come across things like Special-Names  in cobol, otherwise English like programming language which may bore some of us. Of course we are talking about COBOL here. Let’s create a scenario… Continue Reading →

Static & Dynamic SQL in COBOL :: A Walk-Through

COBOL allows SQL queries to be executed both Statically and dynamically. However it’s often confusing that when Static SQL is to be used and when  Dynamic SQL. This will be quite clear once you know the exact difference between the… Continue Reading →

IEBPTPCH :: Merge PDS Members in a PS File.

IBM provides a utility, IEBPTPCH, to merge members of PDS (Partitioned Dataset) into a PS (Physical Sequential) file. However the sole purpose of this utility is to Print or Punch all or part of datasets (PS or PDS). So we… Continue Reading →

PS File Record Format :: Fixed block or Variable block?

Most commonly used file formats for a PS file are Fixed Block (FB) & Variable Block (VB). At times when we are uncertain of the file format, we can easily deduce that using LISTDS command with IKJEFT01 utility in JCL…. Continue Reading →

IGYWCLG :: COBOL File handling in JCL SYSIN Card.

In previous post we have seen how to execute a COBOL program (Add 2 numbers) in JCL Sysin Card. This post is concentrating more on how to accomplish a complex task for e.g. File handling using IGYWCLG. All we got… Continue Reading →

Run a COBOL program through JCL SYSIN Card :: IGYWCLG utility.

Many a times, we require to write a COBOL program for testing purpose. For that we write the COBOL program then we write a Compile JCL and then Run JCL. However this can be done in a simple JCL Step… Continue Reading →

Legacy Programming Languages: Need of the hour ?

On the 50th anniversary of COBOL in Aug 2009, a blogger Jeff Atwood shared some interesting statistics regarding COBOL (one of many legacy languages) and explained why COBOL is found “Everywhere & Nowhere”. You may call the statistics outdated now but mere… Continue Reading →

Legacy Programming Languages: Need of the hour ?

On the 50th anniversary of COBOL in Aug 2009, a blogger Jeff Atwood shared some interesting statistics regarding COBOL (one of many legacy languages) and explained why COBOL is found “Everywhere & Nowhere”. You may call the statistics outdated now but… Continue Reading →

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