Question

我以UserA身份登录并尝试执行以下

alter session set current_schema = UserB;
begin
    execute immediate 'Insert into UserB.tablea (c1, c2) values (val1,val2)'
end;

我一直收到此错误

ORA-01031: insufficient privileges
ORA-06512: at line 3
01031. 00000 -  "insufficient privileges"
*Cause:    An attempt was made to change the current username or password
       without the appropriate privilege. This error also occurs if
       attempting to install a database without the necessary operating
       system privileges.
       When Trusted Oracle is configure in DBMS MAC, this error may occur
       if the user was granted the necessary privilege at a higher label
       than the current login.
*Action:   Ask the database administrator to perform the operation or grant
       the required privileges.
       For Trusted Oracle users getting this error although granted the
       the appropriate privilege at a higher label, ask the database
       administrator to regrant the privilege at the appropriate label.

我确实在UserA上有alter_session特权，并在UserB.tablea上插入UserA作为UserA。有什么想法吗？

Answer 1

您可能会对“set current_schema = xyz”的内容感到困惑。这只是使您无需在引用另一个模式中的对象时键入用户名，它不会为您提供任何新权限。

SQL> select * from scott.dept;

    DEPTNO DNAME          LOC           OPTION
---------- -------------- ------------- --------------------
        10 ACCOUNTING     NEW YORK
        20 RESEARCH       DALLAS
        30 SALES          CHICAGO
        40 OPERATIONS     BOSTON

SQL> select * from dept;
select * from dept
              *
ERROR at line 1:
ORA-00942: table or view does not exist


SQL> alter session set current_schema = scott;

Session altered.

SQL> select * from dept;

    DEPTNO DNAME          LOC           OPTION
---------- -------------- ------------- --------------------
        10 ACCOUNTING     NEW YORK
        20 RESEARCH       DALLAS
        30 SALES          CHICAGO
        40 OPERATIONS     BOSTON

因此，您需要将UserB.tablea上的授权插入到运行代码的用户。作为测试，只需运行

即可

Insert into UserB.tablea (c1, c2) values (val1,val2);

在开始/结束块之外。

在备用模式上执行PL / SQL

1 个答案: