CASSPOOL includes six keyed indexes from which to choose. To select an index, move its corresponding 78-level field to the KEY-ID field. To illustrate this point, the following partial listing from mfpubcas.cpy shows the available indexes:
... * ============================================== 03 KEY-DATA. 05 ()-key-id PIC x. * available keys are: 78 78-KEY-IS-type value '1'. * type, rec-class, rec-priorty, rec-version, job-nbr, job-seq 78 78-KEY-IS-job-NUMBER value '2'. * job-nbr, job-seq 78 78-KEY-IS-type-job-name value '3'. * type, job-name, job-nbr 78 78-KEY-IS-type-userid value '4'. * type, userid, job-nbr 78 78-KEY-IS-type-job-nbr value '5'. * type and job-nbr 78 78-KEY-IS-type-date value '6'. * type, date, job-nbr * =========================================== ...