RRDS

Relative record data set (RRDS)

RRDS file also similar to ESDS file . it has data component only.

RRDS contains only fixed length records which we defined in RECORDSIZE field..

Just instead of NONINDEXED parameter we code NUMBERED parameter.

Sample program-------

//E114298J JOB ,,NOTIFY=&SYSUID,CLASS=B

//STEP1 EXEC PGM=IDCAMS

//SYSPRINT DD SYSOUT=*

//SYSIN DD *

DEFINE CLUSTER(NAME(ak999.ESDS.VSAM) -

NUMBERED -

RECSZ(80,80) -

TRACKS(1,1) -

CISZ(4096) -

FREESPACE(3,3))

/*

 

Now I will write a program in my JCL

Similar to ESDS Data and cluster file is created.

Data insertion and deletion process is same like ESDS VSAM file.

Here I have defined record size as (5,5)

So I can enter only 5 letter or number it will not accept 6 one

Data is accessed by RRN number.

See the below snapshot.

Delete operation also same as KSDS,ESDS file.