This repository contains a batch launcher and toolkit for Java applications running on z/OS. - java-samples/vsam/file/UpdateKsdsRecords.java at master · zsystems/java-samples
VSAM allows KSDS and ESDS (but not RRDSor extended ESDS) data sets to have alternate keys. When the data set is created, one secondary oralternate indexis built for each alternate key in the record and is related to the primary or base key. To access records using an alternate key, yo...
VSAM-SAMPLE-KSDSSEQUENTIALREAD ENVIRONMENT DIVISION. INPUT-OUTPUT SECTION. FILE-CONTROL. SELECT EMP-FILE ASSIGN TO EMPFIL ORGANIZATION IS INDEXED ACCESS MODE ISDYNAMIC RECORD KEY IS EMP-NO FILE STATUS IS WS-EMPFIL-STATUS. DATA DIVISION.
RECORD KEY IS EMP-NO ->KSDS , THE KEY MUST DEFINED IN FD FILE STATUS IS WS-EMPFIL-STATUS. DATA DIVISION. * FILE SECTION. FD EMP-FILE RECORD IS VARYING FROM 1 TO 80. 01 EMP-FILE-REC. 05 EMP-NO PIC X(18). ->KEY DEFINITION 05 FILLER PIC X(1). 05 EMP-NAME PIC X(11). 05...
into which records are stored. The length of a record on a fixed RRDS is always equal to the size of the slot. VSAM locates records in a fixed RRDS by multiplying the slot size by the RRN (which you supply on the file control request), to calculate the byte offset from the start ...