環境：Oracle 10g,11g.
現象：在一次遷移測試中，發現有這樣的角色賦權會報錯不存在：

[email protected]> grant PLUSTRACE to jingyu;
grant PLUSTRACE to jingyu
      *
ERROR at line 1:
ORA-01919: role 'PLUSTRACE' does not exist

查詢發現這個角色是需要手工執行指令碼建立，直接執行Oracle自帶的SQL指令碼@?/sqlplus/admin/plustrce.sql即可：

[email protected]> @?/sqlplus/admin/plustrce.sql
 
[email protected]> 
[email protected]> drop role plustrace;
drop role plustrace
          *
ERROR at line 1:
ORA-01919: role 'PLUSTRACE' does not exist


[email protected]> create role plustrace;

Role created.

[email protected]> 
[email protected]> grant select on v_$sesstat to plustrace;

Grant succeeded.

 
[email protected]> grant select on v_$statname to plustrace;

Grant succeeded.

[email protected]> grant select on v_$mystat to plustrace;

Grant succeeded.

[email protected]> grant plustrace to dba with admin option;

Grant succeeded.

[email protected]> 
[email protected]
 
> set echo off
[email protected]> 

可以看到這個角色就是封裝了對v_$sesstat，v_$statname，v_$mystat這幾個檢視的查詢許可權。

執行以後就可以直接賦予使用者PLUSTRACE的角色了：

[email protected]> grant PLUSTRACE to jingyu;

Grant succeeded.