Basic HTML version of Foils prepared
7 October 97
Foil 7 Examples of SELECT and PROJECT
From
untitled presentation ARL Database Tutorial --
February 98
.
by
Gang Cheng, C.W. Ou, Geoffrey C. Fox
Selection Operation: create a new table by limiting the set of rows of a given table according to a specified criterion
Projection Operation: acts on a table by deleting some of its columns
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Basic HTML version of Foils prepared 7 October 97
