How to compare two files using Librarian

Products

• Librarian

Issue/Introduction

Two files can be compared using the Librarian Comparator II utility.

 

Environment

Release 4.3 

Resolution

The Comparator II is a utility program you can use to compare two files and report on their differences and similarities.

A file presented for comparison can be a sequential file, a member of a partitioned data set, or a member of a CA-Librarian Master file.

To view samples and details, please see the Users Guide Chapter 9 Using Comparator II (z/OS and OS/390).

Here is a sample, comparing two members from different master files.

Please see the documentation for all options available:

//LIBCOMP2     EXEC  PGM=COMP2
//STEPLIB      DD     DSN=YOUR.LIBRARIAN.CAILIB,DISP=SHR
//SYSUT1       DD     DSN=YOUR.FIRST.LIBRARIAN.MASTER.FILE,DISP=SHR
//SYSUT2       DD     DSN=YOUR.SECOND.LIBRARIAN.MASTER.FILE,DISP=SHR
//SYSPRINT     DD     SYSOUT=*
//SYSPUNCH     DD     SYSOUT=*
//SYSIN        DD       *
OLDFILE MEMBER=MEMBERNAME,STRING=ALL
NEWFILE MEMBER=MEMBERNAME,STRING=ALL
DK PUN=YES,CLEARID=NO
REP LST=ALL
//

 

If you want to see only changes specify:

 	REP LST=CHANGES

Librarian Access Method (LIB/AM) is an option providing a direct read-only interface between IBM language translators and Librarian master files.

LIB/AM allows members stored on a master file to be read as if they were members stored on a partitioned data set.