Eddie Marks
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A member of the Philip Greenspun's Homepage community since June 22, 2010
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- June 22, 2010, on Introduction to Database Management Systems:
Another addendum for MySQL is that "The CHECK clause is parsed but ignored by all storage engines" (http://dev.mysql.com/doc/refman/5.1/en/create-table.html). The CHECK can be accomplished, however, with an appropriate TRIGGER.
philg@mit.edu