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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.

The loss of the control file forced you to re-create the control file. After re-creating it and opening the database, you find that some of the data files are named as MISSINGnnnnn, where nnnnn is a five-digit number starting with 0. What could be the possible reason?()  These are the data files that are corrupted.。  There is no SYSAUX tablespace in your database。  There is a read-only tablespace in your database.。  These are the data files that cannot be recovered.。 乔木类 What does the Web Session Affinity feature of Active GridLink for RAC provide?() It mandates that HTTP sessions must be stored in an Oracle RAC database for the highest  throughput and availability.。 It pins a connection to the thread associated with a web session such that subsequent  connection reservations are significantly faster.。 It stores a reference to the connection associated with an HTTP session in the session object.。 It allows developers to modify how their web application reserves and releases database  connections to allow enhanced performance.。 It provides improved performance by associating a database connection with an HTTP session.&e。 幼儿园家长工作的管理与指导上需要注重的方面有() 对家长工作的认识要到位。 加强家长工作的计划性。 家长工作制度化。 明确岗位职责,注重培训和指导。 个人依法享受社会保险待遇,但无权监督本单位为其缴费情况。

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? ()

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