IBM
C2090-610 · Question #81
Which type of constraint can be used to tell the DB2 Optimizer that a parent-child relationship exists between two tables, but that the relationship is not enforced?
The correct answer is D. Informational. See the full explanation below for the reasoning.
Question
Which type of constraint can be used to tell the DB2 Optimizer that a parent-child relationship exists between two tables, but that the relationship is not enforced?
Options
- ACheck
- BUnique
- CReferential
- DInformational
How the community answered
(43 responses)- A2% (1)
- B7% (3)
- C14% (6)
- D77% (33)
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