DATA RESEARCHING METHOD IN ELECTRONIC SWITCHING CENTER

摘要

The method searches data in a data base of a large capacity electronic branch exchange by using rules and relations defined by an user. The method comprises the steps of: (A) defining a search instruction in a user defined form and inserting the instruction on an application program; (B) storing tuple region address and logical offset on an A3 register; (C) calculating physical address of a tuple and storing the address on an A3 register; (D) storing a relation index on a d1 register and storing data of the relation index on a d2 register; (E) checking that input instruction is a user defined relation; (F) jumping to corresponding search routine and returning to the step (A) for the user defined relation and (G) jumping to an error routine and returning to the step (A) for non-user defined relation.