Archive for the ‘SQL’ Category

find unmatched rows   Leave a comment

I wanted to create a query that would return the reverse inverse of two sets, where the sets are defined using multiple where clauses restricting columns. The idea was to compare the set of all possible employee days in a given month with actual entries of time on each day, and find the unmatched rows. [...]

Posted March 9, 2007 by softwaretrading in Software, SQL

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