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User A issues the command: LOCK TABLES pets READ; Which command can User B execute against the pets table?（）
- A、UPDATE pets…
- B、SELECT….FROM pets
- C、INSERT INTO pets…
- D、ALTER TABLE pets…
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A user issues a SELECT command against the Oracle database. Which of the following choices describes a step that Oracle will execute in support of this statement?（）A、Acquire locks on table queried B、Generate redo for statement C、Fetch data from disk into memory D、Write changes to disk
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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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单选题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
考题
单选题A user issues a SELECT command against the Oracle database. Which of the following choices describes a step that Oracle will execute in support of this statement?（）A
Acquire locks on table queried B
Generate redo for statement C
Fetch data from disk into memory D
Write changes to disk
考题
单选题View the Exhibit and examine the parameters. User A executes the following command to update the TRANS table： SQL UPDATE B.trans SET tr_amt=tr_amt+500 WHERE c_code=’C005’； Before user A issues a COMMIT or ROLLBACK command， user B executes the following command onthe TRANS table： SQL ALTER TABLE trans MODIFY （tr_type VARCHAR2（3））； What would happen in this scenario（）A
The ALTER TABLE command modifies the column successfully.B
The DDL operation gets higher priority and transaction for user a is rolled back.C
The ALTER TABLE command waits indefinitely until user a ends the transaction.D
The ALTER TABLE command fails after waiting for 60 seconds due to the resource being busy.
考题
单选题View the Exhibit and examine the parameters. User A executes the following command to update the TRANStable： SQL UPDATE B.trans SET tr_amt=tr_amt+500 WHERE c_code=’C005’； Before user A issues a COMMIT orROLLBACK command， user B executes the following command on the TRANS table： SQL ALTER TABLE trans MODIFY （tr_type VARCHAR2（3））； What would happen in this scenario（）A
The ALTER TABLE command modifies the column successfully.B
The DDL operation gets higher priority and transaction for user A is rolled back.C
The ALTER TABLE command waits indefinitely until user A ends the transaction.D
The ALTER TABLE command fails after waiting for 60 seconds due to the resource being busy
考题
单选题One of the users in the PROD database， Adams， complains that his update on the table， TRANS， is taking an unusually long time to complete. You find that the table gets locked by another database user before Adams starts his transactions， and you are unable to contact the user holding the table lock. As Adams is updating some crucial rows in the table， he should get the highest priority. Which method would you use to overcome this problem？（）A
execute the command， ALTER SESSION KILL ..， to kill the blocking sessionB
execute the DBMS_SESSION.KILL_SESSION procedure to kill the blocking sessionC
execute the command， ALTER SYSTEM KILL SESSION ..， to kill the blocking sessionD
execute the command， ALTER SESSION UNLOCK ..， to release the lock for the blocking sessionE
execute the command， ALTER SYSTEM UNLOCK SESSION ..， to release the lock for the blocking session
考题
单选题Which of the following statements allows USER1 to take away read access on the table ORG.TAB1 from USER2?（）A
REVOKE SELECT FROM user2 ON TABLE org.tab1B
REVOKE SELECT ON TABLE org.tab1 FROM user2C
REVOKE READ ACCESS FROM user2 ON TABLE org.tab1D
REVOKE READ ACCESS ON TABLE org.tab1 FROM user2
考题
单选题The user HR owns the EMP table. The user HR grants privileges to the user SCOTT by using this command： SQL GRANT SELECT，INSERT，UPDATE ON emp TO scott WITH GRANT OPTION； The user SCOTT executes this command to grant privileges to the user JIM： SQL GRANT SELECT，INSERT，UPDATE ON hr.emp TO jim； Now， the user HR decides to revoke privileges from JIM using this command： SQL REVOKE SELECT，INSERT，UPDATE ON emp FROM jim； Which statement is true after HR issues the REVOKE command（）A
The command fails because SCOTT still has privileges.B
The command succeeds and privileges are revoked from JIM.C
The command fails because HR cannot revoke the privileges from JIM.D
The command succeeds and only HR has the privilege to perform the SELECT， INSERT， and UPDATEoperations on the EMP table.
考题
单选题A few people do keep snakes, which are _____ disgusted, as their pets.A
individuallyB
drasticallyC
particularlyD
universally
考题
单选题The ORDERS table belongs to the user OE. OE has granted the SELECT privilege on the ORDERS table to the user HR.Which statement would create a synonym ORD so that HR can execute the following query successfully?（）A
CREATE SYNONYM ord FOR orders; This command is issued by OE B
CREATE PUBLIC SYNONYM ord FOR orders; This command is issued by OE C
CREATE SYNONYM ord FOR oe.orders; This command is issued by the database administrator D
CREATE PUBLIC SYNONYM ord FOR oe.orders; This command is issued by the database administrator
考题
单选题User A issues the command: LOCK TABLES pets READ; Which command can User B execute against the pets table?（）A
UPDATE pets…B
SELECT….FROM petsC
INSERT INTO pets…D
ALTER TABLE pets…
考题
单选题User A executes the following command to update the TRANS table） SQL UPDATE B.trans SET tr_amt=tr_amt+500 WHERE c_code=’C005’； Before user A issues a COMMIT or ROLLBACK command， user B executes the following command on the TRANS table： SQl ALTER TABLE trans MODIFY （tr_type VARCHAR2 （3））； What would happen in this scenario？（）A
The transaction for user A is rolled back.B
The ALTER TABLE command modifies the column successfully.C
The ALTER TABLE command fails due to the resource being busy.D
The ALTER TABLE command waits until user A ends the transaction.
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