摘要: col current_scn for 99999999999999999 select dbms_flashback.get_system_change_number current_scn from dual; current_scn 881123135583 SQL> set num 50SQ 阅读全文
posted @ 2021-03-25 17:21 大漠老兵 阅读(275) 评论(0) 推荐(0) 编辑