Topics:

• Entry Segment Retrieval of Network Records
• Descendant Segment Retrieval of Network Records
• Retrieving LRF-Based Records

To retrieve all of the necessary records to fulfill a request, the adapter navigates the IDMS data source using DML or LRF commands. The adapter automatically generates DML or LRF commands based on information from the Master File, Access File, and your request to determine the most appropriate and efficient IDMS retrieval method.

There are three kinds of IDMS access:

• Entry segment retrieval for network (DML) records.
• Descendant segment retrieval for DML records.
• LRF record retrieval.

This chapter discusses the navigational strategies used for each kind of access.