This badge earner understands the benefits, components, structure, and functions of IMS databases: how database records are processed in hierarchical sequence; DBDs, PSBs, and ACBs; sequential versus direct access of segments; DL/I calls; secondary indexes and logical relationships; full-function, HALDB, and Fast Path database types; IMS access methods; commit points for recovery and restart; components and architecture of an IMS online system; and how IMS databases are used in DBCTL.

• Type Validation
• Level Foundational
• Time Days
• Cost Free