Data processing: database and file management or data structures – Database and file access – Query optimization
Reexamination Certificate
2005-07-14
2010-06-08
Vital, Pierre M (Department: 2156)
Data processing: database and file management or data structures
Database and file access
Query optimization
C707S999003
Reexamination Certificate
active
07734616
ABSTRACT:
A storage system for providing a preferable data access performance by performing controls considering database management system (DBMS) execution information or database process priorities, by acquiring static configurational information of a DBMS by means of a DBMS information acquisition and communication program, a DBMS information communication section, and a host information setting program; acquiring DBMS execution information by means of a query plan acquisition program, the DBMS information communication section, and a process performance management program; acquiring information on priorities of database processes given by the process performance management program; and storing them in disk I/O management information with process priorities, DBMS execution information, and DBMS data information, in which cache control section in a storage system control program controls a data cache by referring to the above information.
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Kitsuregawa Masaru
Mogi Kazuhiko
Oeda Takashi
Hitachi , Ltd.
Lee Rachel J
Townsend and Townsend / and Crew LLP
Vital Pierre M
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