| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be92719b856db86c092cc233e9512ca2 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F12-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F17-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F15-00 |
| filingDate |
2000-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60c0398ea430b43066ac94c56da98fe4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f704f7278f3b26361511f6878d2cc98b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff23912c407cc08cd7960f6addbd70da
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d3746bdb520a8bdf23b35185312225d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f2a1692c40cd03bc88c6f7b922231a8 |
| publicationDate |
2002-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2002032249-A |
| titleOfInvention |
Exclusive control method, exclusive control device, recording medium recording exclusive control program, and database system |
| abstract |
(57) Abstract: An object of the present invention is to provide an exclusive control device for a database system in which query optimization for optimizing the transaction execution efficiency of the system is performed. An exclusive control device in a database system according to the present invention includes: a means (2) for generating a lock processing procedure including a lock operation and an unlock operation for simultaneous transaction execution control; Means (3) for creating an access plan for query optimization taken as an operation, and means (4) for evaluating the cost of the access plan including the efficiency of transaction concurrency for the created access plan. Means for selecting an optimal access plan based on the cost evaluated from the created access plans (5) And |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020255519-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010146070-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7899799-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8762996-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018062884-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013117852-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4655145-B2 |
| priorityDate |
2000-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |