This chapter provides an overview of the database reorganization tasks that an IMS database administrator performs. Specifically, this chapter:
• Introduces the requirements for and the process of IMS database reorganization.
• Describes the available IMS utilities for reorganizing hierarchical direct (HD) databases.
• Describes how to use the utilities for particular situations, including which utility must be run to reorganize an HD database with and without logical relationships or secondary indexes.
• Describes initially loading databases with logical relationships and secondary indexes, because doing so also requires the reorganization utilities to build the logical relationships and secondary ...