ORA-02030问题解决方法又一例

给普通用户赋予对v$视图的查询权限，结果报 ORA-02030 错误
ORA-02030: 只能从固定的表/视图查询(ORA-02030: can only select from fixed tables/views)
http://cuug.com.cn/html/activityinfor_283_283_1054.html?wnlt
问题背景:
在一个dba用户下的存储过程中需要使用v$的视图(v$client_stats)

使用命令行测试:
SQL> variable total number;
SQL> begin
  2    select count(1) into :total from v$client_stats;
  3    dbms_output.put_line('total = '|| :total);
  4  end;
  5  /
 
PL/SQL procedure successfully completed
total
---------
0

这样并没有问题，于是编辑成过程执行

使用过程
SQL> create or replace procedure p_test
  2  authid current_user
  3  as
  4    v_all  number := 9999;
  5  begin
  6    select count(1)
  7      into v_all from v$client_stats;
  8 
  9    dbms_output.put_line('v_all =' ||v_all );
  10  end;
  11  /
 
Warning: Procedure created with compilation errors

具体错位信息
Compilation errors for PROCEDURE ZHANGBIN.P_TEST

Error: PL/SQL: ORA-00942: 表或视图不存在
Line: 9
Text: FROM v$client_stats;


Error: PL/SQL: SQL Statement ignored
Line: 7
Text: SELECT COUNT(1)

此时需要给用户赋查询权限(于是产生了ORA-02030错误)

SQL> show user;
User is "SYS"

SQL> grant select on v$client_stats to zhangbin;
 
grant select on v$client_stats to zhangbin
 
ORA-02030: 只能从固定的表/视图查询

解决方法:

SQL> select * from dba_synonyms t where t.synonym_name = 'V$CLIENT_STATS';
 
OWNER                          SYNONYM_NAME                  TABLE_OWNER                    TABLE_NAME                    DB_LINK
------------------------------ ------------------------------ ------------------------------ ------------------------------ -----------
PUBLIC                        V$CLIENT_STATS                SYS                            V_$CLIENT_STATS
 
SQL> grant select on V_$CLIENT_STATS to zhangbin;
 
Grant succeeded

切换到普通用户
SQL> show user;
User is "zhangbin"

SQL> create or replace procedure p_test
  2  as
  3    v_all      number :=9999;
  4  begin
  5    select count(1)
  6      into v_all
  7      from v$client_stats;
  8    dbms_output.put_line('v_all =' ||v_all );
  9  end;
  10  /
 
Procedure created
 
SQL> set serveroutput on
SQL> exec p_test;
 
v_all =0
 
PL/SQL procedure successfully completed