User Charge Estimation in Numeric Online Databases: A Methodology |
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Page 12
... possible with numeric data ) is usually associated with aims at improving the output of work or even achieving optimal results ( e.g. improved / optimal marketing decisions ) , which are often essential factors in the competition ...
... possible with numeric data ) is usually associated with aims at improving the output of work or even achieving optimal results ( e.g. improved / optimal marketing decisions ) , which are often essential factors in the competition ...
Page 18
... possible to determine the number of hits , because the queries are flat . Users can use the number of hits e.g. to estimate the required remaining connect - time , which in such cases largely depends on communication network and ...
... possible to determine the number of hits , because the queries are flat . Users can use the number of hits e.g. to estimate the required remaining connect - time , which in such cases largely depends on communication network and ...
Page 25
... possible . Minimum possible energy should be required in the use of any tool . The intended effects should be produced as promptly as possible . Unintended and undesirable side - effects associated with tool use should be minimal . The ...
... possible . Minimum possible energy should be required in the use of any tool . The intended effects should be produced as promptly as possible . Unintended and undesirable side - effects associated with tool use should be minimal . 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