December 2014
Intermediate to advanced
852 pages
17h 57m
English
Content preview from Joe Celko's SQL for Smarties, 5th Edition
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Chapter 34
Relational Division
Abstract
Relational division is one of the eight basic operations in Codd's relational algebra. The idea is that a divisor table is used to partition a dividend table and produce a quotient or results table. The quotient table is made up of those values of one column for which a second column had all of the values in the divisor.
Keywords
Codd's relational algebra
dividend
divisor
quotient
remainder
Codd's Division
Todd's Division
Romley's Division
Relational division is one of the eight basic operations in Codd’s relational algebra. The idea is that a divisor table is used to partition a dividend table and produce a quotient or results table. The quotient table is made up of those values of one column for ...
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