The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 1998
Filed:
Jun. 05, 1996
Applicant:
Inventor:
Daniel S Tow, Palo Alto, CA (US);
Assignee:
Oracle Corporation, Redwood Shores, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
707-2 ; 707-3 ; 707-4 ; 707101 ;
Abstract
A method of constructing an aid to tuning of database statements comprises a data structure (stored in a memory on a computer system) which compactly represents that information which is needed about a database statement to determine the optimal series of operations (e.g., table data fetches) needed to execute the statement. The information includes the relationships between tables joined in the statement and the selectivities of logical conditions applied to rows in those tables.