This chapter describes how you use Virtual Storage Access Method (VSAM) data sets on your workstation--including Distributed Data Management (DDM), ISAM, and BTRIEVE data sets--for record-oriented data transmission.
Three access methods are discussed in connection with the PL/I workstation products; however, not all three methods are supported on every platform. Use the following as a guideline:
This chapter also describes the statements you use to access the three types of VSAM data sets--sequential, keyed, and direct. In many ways, workstation VSAM is similar to the VSAM on the mainframe. On the workstation, the terms sequential, keyed and direct are similar to the VSAM entry-sequenced data set, key-sequenced data set, and relative record data set.
The chapter concludes with a series of examples showing the PL/I statements and DD:ddname environment variables necessary to create and access workstation VSAM data sets.