----执行存储过程p_create_emp2报下面的错误：
SQL> exec p_create_emp2;begin p_create_emp2; end;ORA-01031: 权限不足
ORA-06512: 在 "ECHO.P_CREATE_EMP2", line 12
ORA-06512: 在 line 2----查看p_create_emp2，该存储过程是要创建emp2表
create or replace procedure P_create_emp2 ascursor t_cursor isselect * from user_tables where table_name = 'EMP2';t_cur t_cursor%rowtype;num int:=0;
beginfor t_cur in t_cursor loopnum:=num+1;end loop;if num=1 thenexecute immediate 'drop table emp2 purge';execute immediate 'create table emp2 as select * from emp';elseexecute immediate 'create table emp2 as select * from emp';end if;
end P_create_emp2;----查看echo用户的角色或权限
SQL> select * from dba_role_privs where grantee='ECHO';GRANTEE                        GRANTED_ROLE                   ADMIN_OPTION DEFAULT_ROLE
------------------------------ ------------------------------ ------------ ------------
ECHO                           DBA                            NO           YES
----有dba的角色，说明建表的权限----修改存储过程p_create_emp2：
create or replace procedure P_create_emp2 authid current_user ascursor t_cursor isselect * from user_tables where table_name = 'EMP2';t_cur t_cursor%rowtype;num int:=0;
beginfor t_cur in t_cursor loopnum:=num+1;end loop;if num=1 thenexecute immediate 'drop table emp2 purge';execute immediate 'create table emp2 as select * from emp';elseexecute immediate 'create table emp2 as select * from emp';end if;
end P_create_emp2;----再次执行：
SQL> exec p_create_emp2;PL/SQL procedure successfully completedSQL> desc emp2;
Name     Type         Nullable Default Comments
-------- ------------ -------- ------- --------
EMPNO    NUMBER(4)    Y
ENAME    VARCHAR2(10) Y
JOB      VARCHAR2(9)  Y
MGR      NUMBER(4)    Y
HIREDATE DATE         Y
SAL      NUMBER(7,2)  Y
COMM     NUMBER(7,2)  Y
DEPTNO   NUMBER(2)    Y                ----在存储过程加了Authid Current_User选项，表创建成功。