Examine the following statement that is used to modify the primary key constraint on the SALES table：
SQL> ALTER TABLE SALES MODIFY CONSTRAINT pk DISABLE VALIDATE；
Which three statements aretrue regarding the above command（）

多项选择题Your database instance is running with full workload after database creation. You have decided to use a fixed-size undo tablespace. You want to use the Undo Advisor to estimate the capacity of the undo tablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace（）

A.The retention period to support flashback
B.The expected length of the longest-running query
C.The number of undo tablespaces in the database
D.The size of the Flash Recovery Area for the database instance

多项选择题The session of user SCOTT receives the following error after executing an UPDATE command on the EMPtable： ERROR at line 1： ORA-00060： deadlock detected while waiting for resource On investigation， you find that a session opened byuser JIM has a transaction that caused the deadlock.  Which two statements are true regarding the session ofSCOTT in this scenario（）

A.The session is terminated after receiving the error and JIM can continue with his transaction.
B.SCOTT should perform a COMMIT or ROLLBACK to allow JIM to continue with his transaction.
C.The session is rolled back after receiving the error and JIM can continue with his transaction.
D.SCOTT has to reexecute the last command in the transaction after he commits the transaction.

单项选择题The HR user creates a stand-alone procedure as follows and grants the EXECUTE privilege on the procedureto many database users： CREATE OR REPLACE PROCEDURE create_dept （ v_deptno NUMBER， v_dname VARCHAR2， v_mgrNUMBER， 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 DEPARTMENTS tableeven though they do not have the INSERT privilege on the table. You want only those users who haveprivileges on the DEPARTMENTS table to be able to execute the procedure successfully.  What would yousuggest 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 toselected users

多项选择题User SCOTT wants to perform a bulk insert operation in the EMP_DEP table. SCOTT receives the followingerror after the INSERT statement is issued and few rows are inserted：INSERT INTO EMP_DEP （emp_id，name，salary，dep_name，mgr_id） *ERROR at line 1： ORA-01653： unable to extend table SCOTT.EMP_DEP by 128 in tablespace USERS Identify two actions eitherof which will help you resolve this problem. （）

A.Grant the RESOURCE role to SCOTT.
B.Add data files to the USERS tablespace.
C.Grant the CREATE ANY TABLE privilege to SCOTT.
D.Increase the space for SCOTT on the USERS tablespace.
E.Increase the size of the data file associated with the USERS tablespace

多项选择题View the Exhibit and examine the output.  Which two statements are true regarding the LISTENER2 listener（）

A.The ORCL instance is registered dynamically with the listener.
B.The ORCL instance is registered statically in the listener.ora file.
C.The number of current client connections handled by the service handler is two.
D.The total number of client connections handled so far by the service handler is two