User Charge Estimation in Numeric Online Databases: A Methodology |
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Page 14
... processing - based charging has been proposed for BDBs [ Hull - 84 ] . In such a case the user would be charged for the resources he has used during his search , e.g. CPU time , disk storage , line printers and special programs and ...
... processing - based charging has been proposed for BDBs [ Hull - 84 ] . In such a case the user would be charged for the resources he has used during his search , e.g. CPU time , disk storage , line printers and special programs and ...
Page 25
... processing - based user charge for a query ? This problem is here called the processing - based charge estimation problem of a query . The cardinality estimation problem must be solved , because the sizes ( cardinalities ) of the ...
... processing - based user charge for a query ? This problem is here called the processing - based charge estimation problem of a query . The cardinality estimation problem must be solved , because the sizes ( cardinalities ) of the ...
Page 33
... processing - based charge estimation is developed in PART III . It is based on the methods developed in Part I and on extending standard methods and techniques used in file design and query optimization to user charge estimation . In ...
... processing - based charge estimation is developed in PART III . It is based on the methods developed in Part I and on extending standard methods and techniques used in file design and query optimization to user charge estimation . In ...
Contents
USER CHARGING | 13 |
THE RELATIONAL DATA MODEL | 20 |
CARDINALITY ESTIMATION IN NUMERIC ONLINE | 32 |
Copyright | |
7 other sections not shown
Common terms and phrases
A-names access strategy Appendix approach attribute description set attribute name set attribute selectivity attribute values attributes PRODUCT-NO basis BDBs candidate keys cardinality estimation charging methods CODATA components computed connect-time considered constructed data model database files Database Management Database Management Systems database user developed elementary predicates English Summary example expression F1 and F2 FD-set file design file organization file structures Finland functional dependencies implementation information retrieval Information Science intermediate files inverted file Järvelin join attribute join predicate julkaisuja manipulation MANUF-NO MARKET-SHARE methodology n-tuple NDBs Numeric Databases online databases operand file description procedure cost model processing cost PRODUCTS file QSALES query cardinality query cost modelling query negotiation query optimization query processing query results r-card r-description RA operations records relational algebra relational data model restriction predicate result file description SIGMOD sort-key storage parameters Systems TAHITI TRADEMARK TYPE unit charges University of Tampere upper bound user charge estimation vendor