单选题Examine the following commands executed in your database： SQL> ALTER SESSION RECYCLEBIN=ON； Session altered  SQL > CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees；  Table created.  Further， you executed the following command to drop the

第1题：

You execute the following command to audit database activities： SQL> AUDIT DROP ANY TABLE BY scott BY SESSION WHENEVER SUCCESSFUL； What is the effect of this command（）

• A、One audit record is created for every successful DROP TABLE command executed in the session of SCOTT.
• B、One audit record is generated for the session when SCOTT grants the DROP ANY TABLE privilege to otherusers.
• C、One audit record is created for the whole session if user SCOTT successfully drops one or more tables inhis session.
• D、One audit record is created for every session of any other user in which a table owned by SCOTT isdropped successfully.
• E、One audit record is created for every successful DROP TABLE command executed by any user to drop Tables owned by SCOTT

第2题：

Examine the following commands executed in your database： SQL> ALTER SESSION RECYCLEBIN=ON； Session altered  SQL> CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees；  Table created.  Further， you executed the following command to drop the table：  SQL> DROP TABLE emp； Table dropped.  What happens in this scenario？ （）

• A、The table is moved to the SYSAUX tablespace.
• B、The table is moved to the SYSTEM tablespace.
• C、The table is removed from the database permanently.
• D、The table is renamed and remains in the TBSFD tablespace.

第3题：

Your Oracle10g database contains a table with a TIMESTAMP TO LOCAL TIME ZONE column. There are about two hundred column values for the column. You issued the following statement：   SQL> ALTER DATABASE SET TIME_ZONE =’Europe/London’；   What will be the result of issuing the above statement？（）

• A、 The statement will be executed successfully， and a new time zone will be set for the database.
• B、 The statement will be executed successfully， but a new time zone will not be set for the database.
• C、 The statement will not be executed successfully because the SET TIME_ZONE clause can be used only with the ALTER SESSION statement.
• D、 The statement will not be executed successfully because the ALTER DATABASE SET TIME_ZONE statement is used only when the database contains no table with the TIMESTAMP TO LOCAL TIME ZONE column.

第4题：

You executed the following commands：   SQL> ALTER SESSION SET OPTIMIZER_USE_PENDING_STATISTICS = false； SQL> EXECUTE DBMS_STATS.SET_TABLE_PREFS（’SH’， ’CUSTOMERS’， ’PUBLISH’，’false’）； SQL> EXECUTE DBMS_STATS.GATHER_TABLE_STATS（’SH’， ’CUSTOMERS’）；   Which statement is correct regarding the above statistics collection on the SH.CUSTOMERS table in the above session？（）

• A、 The statistics are stored in the pending statistics table in the data dictionary.
• B、 The statistics are treated as the current statistics by the optimizer for all sessions.
• C、 The statistics are treated as the current statistics by the optimizer for the current sessions only.
• D、 The statistics are temporary and used by the optimizer for all sessions until this session terminates.

第5题：

Examine the commands executed in the following sequence：  1：SQL> CREATE ROLE mgrrole；  2：SQL> GRANT create user，select any table，connect，resource TO mgrrole；  3：SQL> GRANT select，update ON sh.sales TO mgrrole；  4：SQL> CREATE ROLE ceo IDENTIFIED BY boss；  5：SQL> GRANT mgrrole，drop any table，create any directory TO ceo；  6：SQL> GRANT ceo TO mgrrole；  Which statement is true about the above commands（）

• A、The commands execute successfully.
• B、Command 6 produces an error because of circular role grant.
• C、Command 5 produces an error because a role cannot be granted to another role.
• D、Command 3 produces an error because the MGRROLE role already contains system privileges.
• E、The table created by HR remains and HR still has the CREATE TABLE system privilege.
• F、The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.

第6题：

You execute the following command toauditdatabase activities：  SQL>AUDITDROP ANY TABLE BY scott BY SESSION WHENEVER SUCCESSFUL；  What is the effect of this command（）

• A、Oneauditrecord is created for every successful DROP TABLE command executed in the session ofSCOTT.
• B、Oneauditrecord is generated for the session when SCOTT grants the DROP ANY TABLE privilege toother users.
• C、One audit record is created for the whole session if user SCOTT successfully drops one or more tablesin his session.
• D、One audit record is created for every session of any other user in which a table owned by SCOTT isdropped successfully.
• E、One audit record is created for every successful DROP TABLE command executed by any user to droptables owned by SCOTT.

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第13题：

You issued the following command：        SQL> DROP TABLE MYTABLE；        SQL> SHOW RECYCLEBIN  The following output is returned：        ORIGINAL NAME RECYCLEBIN NAME               OBJECT TYPE      DROP TIME        ------------- ------------------------------ --------------- --------------------        MYTABLE BIN$04LhcpndanfgMAAAAAANPw==$0     TABLE           2005-01-13：20：11：31  You want to drop the table， MYTABLE， from the Recycle Bin. Which two commands can you issue to accomplish the desired task？（）

• A、 DROP TABLE MYTABLE PURGE；
• B、 PURGE RECYCLEBIN；
• C、 PURGE TABLE MYTABLE；
• D、 PURGE TABLE BIN$04LhcpndanfgMAAAAAANPw==$0；

第14题：

You execute the following command to audit the database activities：   SQL> AUDIT DROP ANY TABLE BY scott BY SESSION WHENEVER SUCCESSFUL；  What is the effect of this command？（）

• A、One audit record is created for the whole session if user SCOTT successfully drops one or more tables in his session.
• B、One audit record is created for every session when any user successfully drops a table owned by SCOTT.
• C、One audit record is created for each successful DROP TABLE command executed by any user to drop tables owned by SCOTT.
• D、One audit record is generated for the session when SCOTT grants the DROP ANY TABLE privilege to other users in his session.
• E、One audit record is created for each successful DROP TABLE command executed in the session of SCOTT.

第15题：

You execute the following set of commands to create a database user and to grant the system privileges in your production environment.  SQL> CREATE USER user01  IDENTIFIED BY oracle DEFAULT TABLESPACE tbs1  TEMPORARY TABLESPACE temp PROFILE default  /  SQL> GRANT create session， create table TO user01； While executing the command to create a table， the user gets the following error message and the CREATE TABLE.. command fails.  ERROR at line 1： ORA-01950： no privileges on tablespace  What could be the possible reason for this error message？（）

• A、The tablespace TBS1 is full.
• B、The user is not the owner of the SYSTEM tablespace.
• C、The user does not have quota on the TBS1 tablespace.
• D、The user does not have sufficient system privileges to create table in the TBS1 tablespace.
• E、The user does not have sufficient privileges to create table on the default permanent tablespace.

第16题：

You execute the following commands to audit database activities: SQL > ALTER SYSTEM SET AUDIT_TRIAL=DB, EXTENDED SCOPE=SPFILE; SQL > AUDIT SELECT TABLE, INSERT TABLE, DELETE TABLE BY JOHN By SESSION WHENEVER SUCCESSFUL; Which statement is true about the audit record that generated when auditing after instance restarts?（）

• A、One audit record is created for every successful execution of a SELECT, INSERT OR DELETE command on a table, and contains the SQL text for the SQL Statements.
• B、One audit record is created for every successful execution of a SELECT, INSERT OR DELETE command, and contains the execution plan for the SQL statements.
• C、One audit record is created for the whole session if john successfully executes a SELECT, INSERT, or DELETE command, and contains the execution plan for the SQL statements.
• D、One audit record is created for the whole session if JOHN successfully executes a select command, and contains the SQL text and bind variables used.
• E、One audit record is created for the whole session if john successfully executes a SELECT, INSERT,or DELETE command on a table, and contains the execution plan, SQL text, and bind variables used.

第17题：

You created the ORDERS table in your database by using the following code：   SQL> CREATE TABLE ORDERS （ORDER_DATE TIMESTAMP（0） WITH TIME ZONE）；   Then， you inserted data in the ORDERS table and saved it by issuing the following statements：SQL> INSERT INTO ORDERS VALUES（’18-AUG-00 10：26：44 PM America/New_York’）；   SQL> INSERT INTO ORDERS VALUES（’23-AUG-02 12：46：34 PM America/New_York’）；   SQL> COMMIT；   Next， you issued the following statement to change the time zone for the database：   SQL> ALTER DATABASE SET TIME_ZONE=’Europe/London’；   What will be the result of executing the above statement？（）  

• A、 The statement will fail.
• B、 The statement will be executed successfully， and the new time zone will be set for the database.
• C、 The statement will be executed successfully， but the new time zone will be set for the current session.
• D、The statement will be executed successfully， but the new time zone will neither be set for the database nor for a specific session.

第18题：

User SCOTT executes the following command on the EMP table but has not issued COMMIT， ROLLBACK，or any data definition language （DDL） command：  SQL> SELECT job FROM emp  2  WHERE job=’CLERK’ FOR UPDATE OF empno;  SCOTT has opened another session to work with the database. Which three operations would wait when issued in SCOTT’s second session？（）

• A、LOCK TABLE emp IN SHARE MODE;
• B、LOCK TABLE emp IN EXCLUSIVE MODE;
• C、DELETE FROM emp WHERE job=’MANAGER’;
• D、INSERT INTO emp（empno，ename） VALUES （1289，’Dick’）;
• E、SELECT job FROM emp WHERE job=’CLERK’ FOR UPDATE OF empno;

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