4D v13.4exists_predicate |
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4D v13.4
exists_predicate
exists_predicate
An exists_predicate is used to indicate a subquery and then check whether it returns anything. This is done by passing the EXISTS keyword followed by the subquery. This example returns the total sales when there is a store in the region specified: SELECT SUM (Sales) |
PROPERTIES
Product: 4D INDEX SEE ALSO |
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