单选题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（）ACreate the procedure with definer’s right.BCreate the procedure with invoker’s right.CGrant the EXECUTE privilege with GRANT OPTION on the procedure to selected users.DCreate the procedure as part of a PL/SQL package and grant the EXECUTE privilege on the package to selected users
单选题
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
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单选题下列选项中，能够解除HR用户的锁定的语句是（）。Aalter user hr unlockBalter user hr account unlockCalter table alter hr unlockDalter table alter unlock hr