Specifying indexed organization for VSAM files

RECORD KEY IS data-name

In the example above, data-name is the name of the prime key field as you define it in the record description entry in the DATA DIVISION. The prime key data item can be class alphabetic, alphanumeric, DBCS, numeric, national, or UTF-8. If it has USAGE NATIONAL, the prime key can be category national, or can be a national-edited, numeric-edited, national decimal, or national floating-point data item. The collation of record keys is based on the binary value of the keys regardless of the class or category of the keys.

The following example shows the statements for a VSAM indexed file (KSDS) that is accessed dynamically. In addition to the primary key, COMMUTER-NO, an alternate key, LOCATION-NO, is specified:

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.