【Oracle】查询当前SCN

介绍两种方式：
一、sys用户下：

select current_scn from v$database;
select dbms_flashback.get_system_change_number as scn from dual;

二、普通用户下：

--普通用户需要有dbms_flashback的权限

---授权给lgr用户
SYS@ENMOEDU> grant execute on dbms_flashback to lgr;

Grant succeeded.
---lgr用户下查询
LGR@ENMOEDU> select dbms_flashback.get_system_change_number as scn from dual;

       SCN
----------
   1061428