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1. View the Exhibit to observe the roles assigned to the SCOTT user.
Which statement is true about the assignment of the SELECT_CATALOG_ROLE role to the SCOTT user?
A) The user can start using the role immediately.
B) The user needs to enable the role explicitly.
C) The user can grant the role to other users.
D) The user cannot use the role at all.
2. View the Exhibit.
Your Oracle 10g database has 6 tablespaces in which:
-TEMP is the default temporary tablespace
-UNDOTBS1 is the default undo tablespace
-USERS is the default permanent tablespace
In this database, which three tablespaces can be made offline? (Choose three.)
A) USERS
B) UNDOTBS1
C) SYSAUX
D) TEMP
E) PROD
F) SYSTEM
3. 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 ALTER TABLE command fails due to the resource being busy.
B) The ALTER TABLE command modifies the column successfully.
C) The ALTER TABLE command waits until user A ends the transaction.
D) The transaction for user A is rolled back.
4. You are working on an online transaction processing (OLTP) system. You notice that a PL/SQL procedure got executed twice at 2:00 p.m. This has incorrectly updated the EMP_SAL table. How would you revert the table to its state at 2:00 p.m.?
A) Issue the rollback statement with system change number (SCN).
B) Perform point-in-time recovery to 2:00 p.m.
C) Restore the entire database from the recent backup and open it.
D) Use Flashback Table feature to revert the changes.
5. View the Exhibit to see the structure of the EMPLOYEES and DEPARTMENTS tables.
Your organization plans to dissolve the department with department ID 30. You execute the following command to delete rows from the DEPARTMENTS table: SQL>delete from DEPARTMENTS
where DEPT_ID = 30; The command fails and displays the following error: ERROR at line 1:
ORA-02292: integrity constraint (HR.SYS_C005374) violated - child record found Which two actions would you take to overcome this error? (Choose two.)
A) first, drop the EMPLOYEES table and then delete the rows from the DEPARTMENTS table
B) alter the foreign key constraint to include the cascade option
C) first, drop the DEPARTMENTS table and then delete the rows from the EMPLOYEES table
D) alter the foreign key constraint to include the on delete cascade option
E) first, delete all of the rows from EMPLOYEES table and then delete the rows from the DEPARTMENTS table for department id 30
F) first, delete rows from the EMPLOYEES table for department id 30 and then delete the rows from the DEPARTMENTS table for department id 30
問題與答案:
問題 #1 答案: B | 問題 #2 答案: A,C,E | 問題 #3 答案: A | 問題 #4 答案: D | 問題 #5 答案: D,F |
27.243.50.* -
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