It is advisable to specifically name at least all PRIMARY KEY and ____ constraints.
A) FOREIGN KEY
B) CHECK
C) NOT NULL
D) UNIQUE KEY
Correct Answer:
Verified
Q52: ON DELETE _ instructs Oracle 10g to
Q53: The UNIQUE key constraint and the _
Q54: The _ constraint helps validate the value
Q55: If you omit the _ parameter,you cannot
Q56: You can use the _ constraint to
Q58: CHECK constraints cannot use pseudocolumns,such as _
Q59: PRIMARY KEY column(s)is / are usually placed
Q60: When you drop a _ constraint,the associated
Q61: A(n)_ index is an index that is
Q62: The _ index is used for application-
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