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ABENCDS_SET_OPERATORS - CDS SET OPERATORS

ABENCDS_SET_OPERATORS - CDS SET OPERATORS

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- CDS View Entity, Set Operators

Set operators merge the result sets of multiple queries into a single result set. In CDS view entities, the following set operators are available:

  • EXCEPT returns all distinct rows of the first result set that are not part of the following result sets.
  • INTERSECT returns all distinct rows that are part of all result sets.
  • UNION merges the result sets of all queries.

The following image illustrates how each set operator merges several result sets:

IMAGE @@ABDOC_SET_operators.jpg@@700@@195@@




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