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Using "exception join" in SQL


David Ford
06.06.2003
Rating: -3.73- (out of 5)


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Even for the experienced iSeries guru, SQL's "exception join" syntax is rarely understood and even more rarely used.

Ironically, it's very similar to the (much more globally understood) "unmatched records with primary file" option in Query/400.

Consider the following two tables:

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