公开(公告)号：JP2003099320A

公开(公告)日：2003-04-04

申请号：JP2002161305

申请日：2002-06-03

Applicant: IBM

Inventor： LI CHUNG-SHENG ,  SMITH JOHN R ,  CHANG YUAN-CHI ,  JHINGRAN ANANT D ,  PADMANABHAN SRIRAM K ,  HSIAO HUI-I ,  CHOY DAVID MUN-HIEN ,  LIN JY-JINE JAMES ,  FUH GENE Y C ,  WILLIAMS ROBIN ,  BERGMAN LAWRENCE D

IPC: G06F12/00 ,  G06F7/00 ,  G06F9/46 ,  G06F17/30

Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for constructing and implementing a universal extension module for processing objects in a database. SOLUTION: A multi-tier database architecture comprises an object-relational database engine as a top tier, one or more domain-specific extension modules as a bottom tier, and one or more universal extension modules as a middle tier. The individual extension modules of the bottom tier operationally connect with the one or more universal extension modules which, themselves operationally connect with the database engine. The domain-specific extension modules preferably provide such functions as searching, indexing, and retrieval services of images, video, audio, time series, web pages, text, XML, spatial data, etc.