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
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302 Introduction to the New Mainframe: z/VSE Basics
controlled by DB2. Data structures can be further broken down into basic
structures
and schema structures. A schema is a logical grouping of these
objects.
12.7.1 Data structures in DB2
Earlier in this chapter we discussed most of the basic structures common to
DBMSs. Now let us look at several structures that are specific to DB2 for VSE.
Table and dbspace
A table is a logical construct. It is kept in a dbspace, which is a logical space
definition limiting the maximum size of the tables and indexes within that space.
Dbspaces are structures that can contain one or more tables. They are assigned
to storage pools, which are built up of physical data sets called dbextents. DB2
for VSE uses VSAM data ...
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