Changing Logical Record Length
Changing Logical Record Length (for Experienced)
Summary
For basic information, go through the Performing Tasks (for Beginners)
- IEBGENER is used to produce a reblocked output data set.
- The output data set can contain either fixed-length or variable-length records with a logical record length different from the input logical record length.
- Any unspecified fields will contain unpredictable data.
Example -
Requirement - Create new PS with different length from input PS file.
Input PS File - MATEPK.IEBGENER.INPUTPS
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
********************************* Top of Data **********************************
E0001 EMPLOYEE1 DIR LOC1 0000100000
E0002 EMPLOYEE2 MGR DEPT1 LOC1 0000080000
E0003 EMPLOYEE3 MGR DEPT2 LOC2 0000075000
E0004 EMPLOYEE4 TL DEPT1 LOC1 0000050000
E0005 EMPLOYEE5 SSE DEPT1 LOC1 0000045000
E0006 EMPLOYEE6 SE DEPT1 LOC1 0000034000
E0007 EMPLOYEE7 SSE DEPT2 LOC2 0000046000
******************************** Bottom of Data ********************************
Code -
----+----1----+----2----+----3----+----4----+----5----+----6----+----7--
***************************** Top of Data ******************************
//MATEPKP JOB (123),'MTH',CLASS=A,MSGCLASS=A,MSGLEVEL=(1,1),
// NOTIFY=&SYSUID
//**********************************************************************
//* COPY INPUT PS DATA TO NEW PS FILE BY CHANGING LENGTH
//**********************************************************************
//STEP10 EXEC PGM=IEBGENER
//SYSPRINT DD SYSOUT=*
//SYSUT1 DD DSN=MATEPK.IEBGENER.INPUTPS,DISP=SHR
//SYSUT2 DD DSN=MATEPK.IEBGENER.OUTPUT1,
// DISP=(NEW,CATLG,DELETE),
// SPACE=(TRK,(10,10),RLSE),
// UNIT=3390,VOL=SER=DEVHD4,
// DCB=(DSORG=PS,RECFM=FB,LRECL=70,BLKSIZE=700)
//SYSIN DD *
GENERATE MAXFLDS=1
RECORD FIELD=(70,1,,1)
/*
**************************** Bottom of Data ****************************
Output - MATEPK.IEBGENER.OUTPUT1
VIEW MATEPK.IEBGENER.OUTPUT1 Columns 00001 00070
Command ===> Scroll ===> CSR
=COLS> ----+----1----+----2----+----3----+----4----+----5----+----6----+----7
****** ***************************** Top of Data ******************************
000001 E0001 EMPLOYEE1 DIR LOC1 0000100000
000002 E0002 EMPLOYEE2 MGR DEPT1 LOC1 0000080000
000003 E0003 EMPLOYEE3 MGR DEPT2 LOC2 0000075000
000004 E0004 EMPLOYEE4 TL DEPT1 LOC1 0000050000
000005 E0005 EMPLOYEE5 SSE DEPT1 LOC1 0000045000
000006 E0006 EMPLOYEE6 SE DEPT1 LOC1 0000034000
000007 E0007 EMPLOYEE7 SSE DEPT2 LOC2 0000046000
****** **************************** Bottom of Data ****************************
Explaining Example -
- SYSUT1 DD maps the input data set (MATEPK.IEBGENER.INPUTPS).
- SYSUT2 DD specifies the output file MATEPK.IEBGENER.OUTPUT1 with record length 70.
- SYSIN DD specifies the control data set as DUMMY to identify no control statements are used.