User Charge Estimation in Numeric Online Databases: A Methodology |
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Page 31
... defined and examples are provided in association with the treatment of the respective subproblems in Parts I - III . The n - tuple representation is also used for hw / sw environment description . This description , called the storage ...
... defined and examples are provided in association with the treatment of the respective subproblems in Parts I - III . The n - tuple representation is also used for hw / sw environment description . This description , called the storage ...
Page 32
... defined and illustrated . PART I consists of the article : Järvelin , K. " Cardinality Estimation in Numeric On - line Databases " , Information Processing and Management . 26 ( 6 ) ; 1986 ( in press ) . PART II consists of the article ...
... defined and illustrated . PART I consists of the article : Järvelin , K. " Cardinality Estimation in Numeric On - line Databases " , Information Processing and Management . 26 ( 6 ) ; 1986 ( in press ) . PART II consists of the article ...
Page
... defined which construct all the components of the file descriptions . for the results of the RA operations . For each operation , an operation charge model is defined which utilises such functions to construct the file description for ...
... defined which construct all the components of the file descriptions . for the results of the RA operations . For each operation , an operation charge model is defined which utilises such functions to construct the file description for ...
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