User Charge Estimation in Numeric Online Databases: A Methodology |
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Page 12
... TRADEMARK , MARKET - SHARE } ) 13 ↑ j - description ( 11,12 , ( PRODUCT - NO , = , PRODUCT * ) ) I1 12 r ... TRADEMARK , MARKET - SHARE } ) = p - description ( 13 , { PRODUCT - NO , TRADEMARK , MARKET - SHARE } ) = ( A , 15 ...
... TRADEMARK , MARKET - SHARE } ) 13 ↑ j - description ( 11,12 , ( PRODUCT - NO , = , PRODUCT * ) ) I1 12 r ... TRADEMARK , MARKET - SHARE } ) = p - description ( 13 , { PRODUCT - NO , TRADEMARK , MARKET - SHARE } ) = ( A , 15 ...
Page 13
... TRADEMARK , TYPE , MANUF - NO , QSALES } , { TRADEMARK } → { MANUF - NO } , { TRADEMARK ) → { TYPE } , { MANUF - NO } → { TYPE } , { QSALES } → { TYPE } , { PRODUCT - NO , TRADEMARK } → { TYPE } , ... , { PRODUCT- NO , TRADEMARK ...
... TRADEMARK , TYPE , MANUF - NO , QSALES } , { TRADEMARK } → { MANUF - NO } , { TRADEMARK ) → { TYPE } , { MANUF - NO } → { TYPE } , { QSALES } → { TYPE } , { PRODUCT - NO , TRADEMARK } → { TYPE } , ... , { PRODUCT- NO , TRADEMARK ...
Page 23
... TRADEMARK and MARKET - SHARE . The evaluation of p - a - descr ( 13 , { PRODUCT - NO , TRADEMARK , MARKET - SHARE } ) is given in fig . 4 . The file descriptions for projections can now be constructed on the basis of the functions p ...
... TRADEMARK and MARKET - SHARE . The evaluation of p - a - descr ( 13 , { PRODUCT - NO , TRADEMARK , MARKET - SHARE } ) is given in fig . 4 . The file descriptions for projections can now be constructed on the basis of the functions p ...
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