RESIZE Operator
Splits or merges records (RESIZE Operator)
RESIZE operator creates a larger record from multiple shorter records if the input length is smaller than the coded length. It also creates multiple shorter records from larger ones if the input length is greater than the coded length. It produces fixed-length output records based on the coded length from fixed-length input records.
Syntax -
Required Operands
- FROM - specifies ddname of the input file. It is mandatory when FROM operand is coded.
- TO - specifies 1 to 10 ddnames of output files. TO and USING operands can code at the same time.
- TOLEN - Specifies the record length uses for the resized output records. 'n' can be 1 to 32760.
Optional Operands
- USING - specifies the first 4-characters of the ddname (xxxxCNTL) for the DFSORT control statement. XXXX name is the user-defined name. Either TO, USING, or both operands can code at the same time.
Example -
Scenario - Resize the employees record length from 80 to 49.
INPUT - MATEPK.INPUT.PSFILE
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
001 PAWAN MAINFRAME JPM AP IN
002 SRINIVAS TESTING ORACLE TG IN
003 SRIDHAR SAS CG OR US
004 VENKATESH ABAP CSC CA US
005 RAVI HADOOP CTS FL US
006 PRASAD HR INFOSYS MI US
007 RAJA TESTING IBM CA USJCL -
----+----1----+----2----+----3----+----4----+----5----+
...
//STEP01 EXEC PGM=ICETOOL
//INDD DD DSN=MATEPK.INPUT.PSFILE,DISP=SHR
//OUTDD DD DSN=MATEPK.OUTPUT.PSFILER,
// DISP=(NEW,CATLG,DELETE),VOLUME=SER=DEVHD4,
// SPACE=(TRK,(1,1),RLSE),UNIT=SYSDA,
// DCB=(DSORG=PS,RECFM=FB,LRECL=49,BLKSIZE=490)
//TOOLIN DD *
RESIZE FROM(INDD) TO(OUTDD) TOLEN(49)
/*
...OUTPUT - MATEPK.OUTPUT.PSFILER
----+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
001 PAWAN MAINFRAME JPM
AP IN
002 SRINIVAS TESTING ORACLE
TG IN
003 SRIDHAR SAS CG
OR US
004 VENKATESH ABAP CSC
CA IN
005 RAVI HADOOP CTS
FL US
006 PRASAD HR INFOSYS
MI US
007 RAJA TESTING IBM
CA US