Integrated Information Support System (IISS). Volume 5. Common Data Model Subsystem. Part 8. NDML (Neutral Data Manipulation Language) Programmer's Reference Manual

摘要

The Common Data Model Processor (CDMP) is a mechanism by which application programs can retrieve and update data without knowing where or how the data are stored. An application program poses requests to the CDMP, which processes those requirements against the databases in which the relevant data are stored and then returns the results to the application program. The Neutral Data Definition Language (NDDL) is the means for posing requests to the CDMP. This manual explains the syntax and semantics of each NDML command. Data Retrieval Commands, DELETE Command, INSERT Command, MODIFY Command, Loop Construct, Example of Precompiling and Executing Application Process, COBOL Reserved Names and Labels, FORTRAN Reserved Names and Labels.