问题:
Exhibit:
View the Exhibit to see the data in the emp table.
You created a PRIMARY KEY constraint on the empno column of the emp table, and the constraint is not deferred. Which two statements are true in this scenario? ()
A . No index would be created or used in this case.
B . A unique index on the empno column would be created.
C . A CHECK constraint would be enforced on the empno column.
D . A NOT NULL constraint would be enforced on the empno column.
E . A bitmap unique index would be created on the empno column.
Exhibit:
View the Exhibit to see the data in the emp table.
You created a PRIMARY KEY constraint on the empno column of the emp table, and the constraint is not deferred. Which two statements are true in this scenario? ()
● 参考解析
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