Which of the following is not a constraint type in Oracle11g?
A) CHECK
B) UNIQUE
C) NOT NULL
D) REFERENCE

Name: Which of the following is not a constraint type in Oracle11g? A) CHECK B) UNIQUE C) NOT NULL D) REFERENCE
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Quizplus · Accepted Answer

All of the other constraint types (CHECK, UNIQUE, NOT NULL) are valid constraint types in Oracle11g. REFERENCE is not a constraint type, but it is used in conjunction with the FOREIGN KEY constraint to establish a reference between two tables.

Which of the Following Is Not a Constraint Type in Oracle11g