TIME-CONSTRAINED QUERY-PROCESSING IN CASE-DB

Authors
OZSOYOGLU G GURUSWAMY S DU KZ HOU WC
Citation
G. Ozsoyoglu et al., TIME-CONSTRAINED QUERY-PROCESSING IN CASE-DB, IEEE transactions on knowledge and data engineering, 7(6), 1995, pp. 865-884
Citations number
16
Categorie Soggetti
Information Science & Library Science","Computer Sciences, Special Topics","Engineering, Eletrical & Electronic","Computer Science Artificial Intelligence
Journal title
IEEE transactions on knowledge and data engineering → ACNP
ISSN journal
10414347
Volume
7
Issue
6
Year of publication
1995
Pages
865 - 884
Database
ISI
SICI code
1041-4347(1995)7:6<865:TQIC>2.0.ZU;2-N
Abstract
CASE-DB is a real-time, single-user, relational prototype DBMS that pe rmits the specification of strict time constraints for relational alge bra queries, Given a time constrained nonaggregate relational algebra query and a ''fragment chain'' for each relation involved in the query , CASE-DB initially obtains a response to a modified version of the qu ery and then uses an ''iterative query evaluation'' technique to succe ssively improve and evaluate the modified version of the query. CASE-D B controls the risk of overspending the time quota at each step using a ''risk control technique.''