單項選擇題

Which statement is true about loading data using the conventional path of SQL*Loader（）

A.Redo is not generated while performing conventional path loads.
B.Only PRIMARY KEY， UNIQUE KEY， and NOT NULL constraints are checked.
C.No exclusive locks are acquired when the conventional path loads are performed.
D.Instead of performing transactions， SQL*Loader directly writes data blocks to the data files.
E.INSERT triggers are disabled before the conventional path load and reenabled at the end of the load

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多項選擇題

User SCOTT executes the following command on the EMP table but has not issued COMMIT， ROLLBACK， orany data definition language （DDL） command：
SQL> SELECT ename FROM emp WHERE job=’CLERK’ FOR UPDATE OF empno；
SCOTT has opened another session to work with the database instance.
Which three operations would waitwhen issued in SCOTT’s second session（）

A.LOCK TABLE emp IN SHARE MODE；
B.LOCK TABLE emp IN EXCLUSIVE MODE；
C.UPDATE emp SET sal=sal*1.2 WHERE job=ANAGER？UPDATE emp SET sal=sal*1.2 WHERE job=？ANAGER？
D.INSERT INTO emp（empno，ename） VALUES （1289，’Harry’）；
E.SELECT ename FROM emp WHERE job=’CLERK’ FOR UPDATE OF empno

單項選擇題

You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows：Warning （%）： 90Critical （%）： 95
Which background process is responsible for issuing alerts when the threshold is crossed（）

A.System monitor （SMON）
B.Process monitor （PMON）
C.Memory manager process （MMAN）
D.Manageability Monitor process （MMON）

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Which statement is true about loading data using the conventional path of SQL*Loader（）

你可能感興趣的試題

You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows：Warning （%）： 90Critical （%）： 95 Which background process is responsible for issuing alerts when the threshold is crossed（）

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You have set Tablespace Full Metrics Threshold values for the USERS tablespace as follows：Warning （%）： 90Critical （%）： 95
Which background process is responsible for issuing alerts when the threshold is crossed（）