ORACLE ORA

¶ÔÓÚx$µÄÇé¿ö
SQL> grant select on sys.x$bh to t1;
grant select on sys.x$bh to t1
ERROR at line 1:
ORA-02030: can only select from fixed tables/views
¶ÔÓÚfixed tables/viewsÖ»ÄÜselect
Èç¹ûÏë°Ñx$bhµÄselectȨÏÞgrant¸øÆäËûÓû§Ôõô°ìÄØ,¿ÉÒÔ±äͨһÏÂ
SQL> create view xbh as select * from sys.x$bh;
View created.
SQL> grant select on xbh to t1;
Grant succeeded.
Õâ¸öÆÕͨÓû§t1¾ÍÓÐÁËselectµ½ sys.x$bhȨÏÞÁË
¶ÔÓÚv$µÄÇé¿ö
SQL> grant select on v$session to t1;
grant select on v$session to bss
*
ERROR at line 1:
ORA-02030: can only select from fixed tables/views
SQL> grant select on v_$session to t1;
Grant succeeded.