March 2007
Beginner
526 pages
13h 53m
English
book
Introduction to the New Mainframe: z/VSE Basics
by Wolfgang Bosch, Hans Joachim Ebert, Helmut Hellner, G. M. (Jerry) Johnston, Wilhelm Mild, Ingolf Salm, Joerg Schmidbauer, Martin Walbruehl, Mike Ebbers
Content preview from Introduction to the New Mainframe: z/VSE Basics
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Chapter 12. Database management systems on z/VSE 319
12.10.2 Defining a database
When the design of a database has been completed, it must be specified to DL/I
by these steps. A description of the single steps follows:
Database description generation (DBDGEN)
Program Specification Block Generation (PSBGEN)
Application control blocks generation (ACBGEN)
Database space allocation
Database description generation (DBDGEN)
The DBDGEN process implements the hierarchical structure of the data by
describing a real physical or (virtually constructed) logical database (physical or
logical DBD) in a formal definition language. It applies to the system ...
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