多选题Oracle9i provides a database package called dbms_redefinition to perform an online rebuild of a table.  Which two steps are you recommended to do prior to issuing thedbms_redefinition_start_redef table procedure call？（）AGrand privileges on the interim 

第1题：

The HR user creates a stand-alone procedure as follows and grants the EXECUTE privilege on theprocedure to many database users：  CREATE OR REPLACE PROCEDURE create_dept （ v_deptno NUMBER， v_dname VARCHAR2， v_mgr NUMBER， v_loc NUMBER） BEGIN  INSERT INTO hr.departments VALUES （v_deptno， v_dname， v_mgr， v_loc）； END；  The users having permission to execute the procedure are able to insert records into the  DEPARTMENTStable even though they do not have the INSERT privilege on the table. You want only those users whohave privileges on the DEPARTMENTS table to be able to execute the procedure successfully.  What would you suggest to the PL/SQL developers to achieve this（）

• A、Create the procedure with definer’s right.
• B、Create the procedure with invoker’s right.
• C、Grant the EXECUTE privilege with GRANT OPTION on the procedure to selected users.
• D、Create the procedure as part of a PL/SQL package and grant the EXECUTE privilege on the package to selected users

第2题：

Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error， you decided to perform an incomplete recovery.  Which two tasks would you be required to perform in the recovery process？ （）

• A、open the database with the RESETLOGS option
• B、open the database with the RESTRICTED option
• C、recover all the data files to the same system change number （SCN）
• D、recover to the required SCN only that data file in which the error occurred

第3题：

You work as a database administrator at Certkiller .com. You are working in an online transaction processing （OLTP） environment. You realize that the salary for an employee， John， has been accidentally modified in the EMPLOYEEStable. Two days ago， the data was in the correct state. Flashback logs generated during last two days are available in the flash recovery area. Which option would you choose to bring the data to the correct state while ensuring that no other data in the same table is affected？（）

• A、 perform point-in-time recovery
• B、 perform a Flashback Table operation to restore the table to the state it was in two days ago
• C、 perform a Flashback Database operation to restore the database to the state it was in two days ago
• D、 perform Flashback Versions Query and Flashback Transaction Query to determine all the necessary undo SQL statements， and then use them for recovery

第4题：

You are working in an online transaction processing (OLTP) environment. You use the FLASHBACKTABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command, the system change number (SCN) was 663571. After flashing back the CUSTOMERS table, you realize that the table is not in the correct state. Now, you need to reverse the effects of the FLASHBACK TABLE command. Which is the fastest and the most efficient option to reverse the effects of the FLASHBACK TABLE command?（）

• A、Restore the backup control file and open the database with RESETLOGS option.
• B、Perform point-in-time recovery because flashback cannot be performed again on this table
• C、Execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571
• D、Execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571

第5题：

You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database named DB1 in the instance. The DB1 database contains the following stored procedure. (Line numbers are useded for reference only.)  01 CREATE PROCEDURE Sales.Procedure1  02 AS  03 IF OBJECT_ID('Service.Table') IS NOT NULL  04 DROP TABLE Service.Table;  06 CREATE TABLE Service.Table (  07 Id int PRIMARY KEY CLUSTERED,  08 Name varchar(100);  09 );  11 ...  12  GOThe following exception is raised when a user tries to invoke Procedure1, "Msg 262, Level 14, State 1, Procedure Procedure1, Line 5 CREATE TABLE permission denied in database 'DB1'." You should grant the user access to execute Procedure1, you must assign only the required permissions.  What action should you do perform?（）  

• A、Between lines 01 and 02, you should insert the WITH EXECUTE AS 'dbo' clause. 
• B、Between lines 01 and 02, you should insert the EXECUTE AS USER = 'dbo' statement. 
• C、You should give the user the ALTER permission on the Service schema 
• D、You should give the CREATE TABLE permission and permit the user to drop the Service.Table table. 

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第13题：

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、Perform point-in-time recovery to 2： 00 p.m.
• B、Use Flashback Table feature to revert the changes.
• C、Restore the entire database from the recent backup and open it.
• D、Issue the rollback statement with system change number （SCN）.

第14题：

You are working in an online transaction processing （OLTP） environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command， the System Change Number （SCN） was 663571. After flashing back the CUSTOMERS table， you realize that the table is not in the correct state and the resultant changes are not what you had desired. So， you need to reverse the effects of the FLASHBACK TABLE command while ensuring that：  a） No other user data in the database is affected.  b） The operation takes the minimum possible time.  Which option would you choose？（）

• A、use the ROLLBACK command with SCN 663571
• B、perform Flashback Transaction Query with SCN 663571
• C、execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571
• D、execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571

第15题：

Oracle9i provides a database package called dbms_redefinition to perform an online rebuild of a table.  Which two steps are you recommended to do prior to issuing thedbms_redefinition_start_redef table procedure call？（）

• A、Grand privileges on the interim table.
• B、Invoke the dbms_redefinition.can_redef_table procedure.
• C、Invoke the dbms_redefinition.sync_interim_table procedure.
• D、Create any triggers， indexes， or constraints on the interim table.
• E、Create an empty interim table with all the desired characteristics.

第16题：

You need to cleanse and standardize the data on potential survey participants prior to inserting it into the staging database. What should you do?（）

• A、Import the data into a staging table by using the OPENROWSET BULK statement. Execute a Transact-SQL stored procedure to cleanse the data and to insert the data into the database.
• B、Import the data into a staging table by using the BULK INSERT statement. Execute a Transact-SQL stored procedure to cleanse the data and to insert the data into the database.
• C、Create a SQL Server Integration Services （SSIS） package to import， standardize， and cleanse the data.
• D、Create a CLR stored procedure to import the data into a staging table， to cleanse and standardize the data， and to insert the data into the database.

第17题：

You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database named DB1 in the instance. DB1 has a table which is named Table01 and a stored procedure named Procedure01. Procedure01 choose data from Table01 by using a sp_executesql Transact-SQL statement. You company security rules forbid users to access tables directly in any database. Look at the exception below: "Msg 229, Level 14, State 5, Line 1 The SELECT permission was denied on the object 'Table01', database 'DB1', schema 'dbo'." The exception is raised when Procedure01 is executed by users. You must make sure that e user can successfully execute Procedure1 complying with the company rules. So what action should you perform to achieve this goal?（）  

• A、You should execute the GRANT SELECT ON dbo.Table01 TO User1 Transact-SQL statement. 
• B、You should execute the GRANT EXECUTE ON dbo.Procedure1 TO User1 Transact-SQL statement. 
• C、You should alter Procedure01 and add the WITH EXECUTE AS OWNER option to its header 
• D、You should alter Procedure01 and add the EXECUTE AS USER = 'dbo' option immediately before the call to the sp_executesql stored procedure.

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