User Charge Estimation in Numeric Online Databases: A Methodology |
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Page 9
... better available on disciplines and activities associated with the biggest economic interests and data collection and research efforts . Other disciplines and activities come slowly behind . Another essential problem area associated ...
... better available on disciplines and activities associated with the biggest economic interests and data collection and research efforts . Other disciplines and activities come slowly behind . Another essential problem area associated ...
Page 10
... better than that of the printed counterparts [ KaLM - 85 ] . If both some NDB and its printed counterpart are available , the printed version is probably faster to access than the database when the target data as such are contained in ...
... better than that of the printed counterparts [ KaLM - 85 ] . If both some NDB and its printed counterpart are available , the printed version is probably faster to access than the database when the target data as such are contained in ...
Page 26
... better to his needs with respect to both content and charge . The goal of this study is to develop a methodology for user charge estimation which satisfies the above requirements . The goals concerning the scope of the solutions of the ...
... better to his needs with respect to both content and charge . The goal of this study is to develop a methodology for user charge estimation which satisfies the above requirements . The goals concerning the scope of the solutions of the ...
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