July 2010
Intermediate to advanced
840 pages
16h 33m
English
Content preview from Joe Celko's SQL for Smarties, 3rd Edition
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Chapter 20. Grouping Operations
I AM SEPARATING THE partitions and grouping operations based on the idea that a group has group properties that we are trying to find, so we get an answer back for each group. A partition is simply a way of subsetting the original table so that we get a table back as a result.
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