ORA-41604: cannot revoke a privilege that was not granted
Cause: An attempt was made to revoke a privilege that was never granted.
Action: None
ORA-41604错误代表着不能撤销一个没有被授予的权限。
1.检查用户是否已经给角色授予权限。
2.检查用户是否使用正确的GRANT或REVOKE语句,正确的语句形式为:GRANT/REVOKE [OBJECT TYPE] ON [OBJECT NAME] TO [USER]。
3.尝试修改GRANT/REVOKE语句,确保用户使用正确的语句格式,并且权限授予或撤销正确。