October 2011
Intermediate to advanced
510 pages
18h 48m
English
book
IBM IMS Version 12 Technical Overview
by Paolo Bruni, Isabelle Bruneel, Angie Greenhaw, Dougie Lawson, Jorge Alberto Luz Ribeiro, Egide Van Aershot
Content preview from IBM IMS Version 12 Technical Overview
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Chapter 3. Database enhancements 73
Each partition must have a name of maximum 7 characters, so that appending the suffixes as
indicated in Figure 3-2 makes it possible to distinguish the data sets within the partition. The
data sets in a partition have generated data set names and DDNAMEs. The letters are used
to distinguish the data sets as shown here:
Y/X PHIDAM index
L Indirect list data set (ILDS)
A through J Database data sets
M through V Database data sets
A PSINDEX
For HALDB, no dynamic allocation members are used; instead, all HALDBs must be
registered in the recovery controls (RECONs). The dynamic allocation is based on
information in the ...
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