Matches in SemOpenAlex for { <https://semopenalex.org/work/W1552217763> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W1552217763 endingPage "138" @default.
- W1552217763 startingPage "111" @default.
- W1552217763 abstract ":This research describes and analyzes schemes for managing decision support databases that are extracted from a central database and “downloaded” to personal workstations. Unlike a (true) distributed database system, where updates are propagated to maintain consistency, these remote “snapshots” are updated only periodically (“refreshed”) upon command of the remote workstation user. This approach to data management has many of the same advantages of a distributed database over a centralized database (e.g., reduced communication costs, improved response time for retrievals, and reduction in contention), but it avoids the high overhead for concurrency control associated with updating in a distributed database. The added cost is in reduced data consistency.The schemes analyzed include full regeneration, the scheme used by System R*, and two new schemes. One new scheme—called modified regeneration—is a variation on simple full regeneration of the snapshot, but transmits only relevant changes to the snapshot The other new scheme uses a difference table of relevant updates. Algorithm descriptions, models of processing and communication costs, analytical and numerical comparison of performance, and qualitative evaluation are included.Our conclusions are that the difference-table approach is the most robust scheme; the System R* scheme has lowest cost for only rather limited environments; and the modified-regeneration scheme is attractive due to its simplicity and flexibility. The results and models presented here could be used by a dbms “refresh optimizer” to determine the best scheme to employ as a function of refresh frequency, update rate, and various processing and communication cost parameters." @default.
- W1552217763 created "2016-06-24" @default.
- W1552217763 creator A5005829374 @default.
- W1552217763 creator A5045498798 @default.
- W1552217763 creator A5071865031 @default.
- W1552217763 date "1990-09-01" @default.
- W1552217763 modified "2023-09-25" @default.
- W1552217763 title "Maintaining Remote Decision Support Databases" @default.
- W1552217763 cites W2038220330 @default.
- W1552217763 cites W2040892657 @default.
- W1552217763 cites W2155166680 @default.
- W1552217763 cites W2159886933 @default.
- W1552217763 cites W2162523974 @default.
- W1552217763 doi "https://doi.org/10.1080/07421222.1990.11517892" @default.
- W1552217763 hasPublicationYear "1990" @default.
- W1552217763 type Work @default.
- W1552217763 sameAs 1552217763 @default.
- W1552217763 citedByCount "2" @default.
- W1552217763 crossrefType "journal-article" @default.
- W1552217763 hasAuthorship W1552217763A5005829374 @default.
- W1552217763 hasAuthorship W1552217763A5045498798 @default.
- W1552217763 hasAuthorship W1552217763A5071865031 @default.
- W1552217763 hasConcept C107535962 @default.
- W1552217763 hasConcept C111919701 @default.
- W1552217763 hasConcept C120314980 @default.
- W1552217763 hasConcept C134306372 @default.
- W1552217763 hasConcept C148840519 @default.
- W1552217763 hasConcept C2779960059 @default.
- W1552217763 hasConcept C33762810 @default.
- W1552217763 hasConcept C33923547 @default.
- W1552217763 hasConcept C41008148 @default.
- W1552217763 hasConcept C54239708 @default.
- W1552217763 hasConcept C55282118 @default.
- W1552217763 hasConcept C67953723 @default.
- W1552217763 hasConcept C70061542 @default.
- W1552217763 hasConcept C77088390 @default.
- W1552217763 hasConcept C77618280 @default.
- W1552217763 hasConceptScore W1552217763C107535962 @default.
- W1552217763 hasConceptScore W1552217763C111919701 @default.
- W1552217763 hasConceptScore W1552217763C120314980 @default.
- W1552217763 hasConceptScore W1552217763C134306372 @default.
- W1552217763 hasConceptScore W1552217763C148840519 @default.
- W1552217763 hasConceptScore W1552217763C2779960059 @default.
- W1552217763 hasConceptScore W1552217763C33762810 @default.
- W1552217763 hasConceptScore W1552217763C33923547 @default.
- W1552217763 hasConceptScore W1552217763C41008148 @default.
- W1552217763 hasConceptScore W1552217763C54239708 @default.
- W1552217763 hasConceptScore W1552217763C55282118 @default.
- W1552217763 hasConceptScore W1552217763C67953723 @default.
- W1552217763 hasConceptScore W1552217763C70061542 @default.
- W1552217763 hasConceptScore W1552217763C77088390 @default.
- W1552217763 hasConceptScore W1552217763C77618280 @default.
- W1552217763 hasIssue "2" @default.
- W1552217763 hasLocation W15522177631 @default.
- W1552217763 hasOpenAccess W1552217763 @default.
- W1552217763 hasPrimaryLocation W15522177631 @default.
- W1552217763 hasRelatedWork W1501513658 @default.
- W1552217763 hasRelatedWork W1606113372 @default.
- W1552217763 hasRelatedWork W2143004356 @default.
- W1552217763 hasRelatedWork W2149511883 @default.
- W1552217763 hasRelatedWork W2273703635 @default.
- W1552217763 hasRelatedWork W2329357071 @default.
- W1552217763 hasRelatedWork W2354954952 @default.
- W1552217763 hasRelatedWork W2373937646 @default.
- W1552217763 hasRelatedWork W2563146846 @default.
- W1552217763 hasRelatedWork W2797514971 @default.
- W1552217763 hasVolume "7" @default.
- W1552217763 isParatext "false" @default.
- W1552217763 isRetracted "false" @default.
- W1552217763 magId "1552217763" @default.
- W1552217763 workType "article" @default.