User Charge Estimation in Numeric Online Databases: A Methodology |
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Page 1
... activities ( e.g. various statistics ) [ ChHe - 84 ] [ Fost - 84 ] [ Heim - 82 ] [ Lait - 86 ] [ LuKF - 77 ] [ RuHa - 84 ] . Other fact databases contain non - numeric but nevertheless usually structured data for the same fields of activity ...
... activities ( e.g. various statistics ) [ ChHe - 84 ] [ Fost - 84 ] [ Heim - 82 ] [ Lait - 86 ] [ LuKF - 77 ] [ RuHa - 84 ] . Other fact databases contain non - numeric but nevertheless usually structured data for the same fields of activity ...
Page 6
... activity is low when compared to query activity . The technical implementation of NDBS is more complicated.2 Three main data models are in use : the hierarchical data model , the network data model and the relational data model [ Ullm ...
... activity is low when compared to query activity . The technical implementation of NDBS is more complicated.2 Three main data models are in use : the hierarchical data model , the network data model and the relational data model [ Ullm ...
Page 14
... Activities of Human Leucocyte Dialysate and Other Dialysates of Mammalian Tissues . Tampere 1979. 144 p . ( Lääke ... Activity and Prostaglandin Excretion . Tampere 1980 . 121 p . ( Lääketieteellisen tiedekunnan julkaisuja 25 ) . 115 ...
... Activities of Human Leucocyte Dialysate and Other Dialysates of Mammalian Tissues . Tampere 1979. 144 p . ( Lääke ... Activity and Prostaglandin Excretion . Tampere 1980 . 121 p . ( Lääketieteellisen tiedekunnan julkaisuja 25 ) . 115 ...
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