Patent attributes
A method and system for unloading an IMS database. Segments in the segment array are stored in an indexed order or are stored in a relative byte address (RBA) order. In both cases, either an image copy of an IMS database or an actual IMS database processed sequentially may be utilized. For indexed order storage, a lookup table may be created to include a key value and a segment array location. A segment array may be created to store both the root and child segments from the IMS database. For RBA ordered storage, a first segment array may be created to store the root segments from the IMS database in a sequential order. Additionally, a second segment array may be created to store the child segments from the IMS database in a relative byte address (RBA) order.
