Patent ID: 7720805
Filing Date: 2010-05-18
Classification: G06F

Abstract:
1. A method for accessing an Information Management System (IMS) database, the method comprising: reading blocks of the IMS database sequentially, block by block, wherein each of the blocks comprises zero or more segments; de-blocking segments in said blocks in response to said reading; storing each segment in a segment array in response to said de-blocking, segments in the segment array being directly accessible, the segment array being usable to unload the segments; and creating a lookup table, said lookup table being useable to access the segments in the segment array, said lookup table comprising a plurality of pairs, each of said pairs comprising a key value and a segment array location, said key value being used to index into the lookup table to obtain a corresponding segment array location, wherein the segments are stored in the segment array in an indexed order and according to a collating sequence of the key values in the lookup table.