VSAM COBOL declaration

- Specifying sequential organization for VSAM files
SELECT S-FILE
ASSIGN TO SEQUENTIAL-AS-FILE
ORGANIZATION IS SEQUENTIAL
ACCESS IS SEQUENTIAL
FILE STATUS IS FSTAT-CODE VSAM-CODE.

- Specifying indexed organization for VSAM files
SELECT I-FILE
ASSIGN TO INDEXED-FILE
ORGANIZATION IS INDEXED
ACCESS IS DYNAMIC
RECORD KEY IS IFILE-RECORD-KEY
ALTERNATE RECORD KEY IS IFILE-ALTREC-KEY
FILE STATUS IS FSTAT-CODE VSAM-CODE.

- Specifying relative organization for VSAM files
SELECT R-FILE
ASSIGN TO RELATIVE-FILE
ORGANIZATION IS RELATIVE
ACCESS IS RANDOM
RELATIVE KEY IS RFILE-RELATIVE-KEY
FILE STATUS IS FSTAT-CODE VSAM-CODE.

MVS - Fichiers VSAM - Mémo

MVS - Les différentes possibilités d'organisation de fichiers en COBOL

MVS COMP : External decimal,Binary, Internal decimal, Internal floating point,External floating point

MVS Exemple de JCL de compilation et d'exécution de programme Cobol