Oracle 19c UNDO 使用率高 ACTIVE 占比高
UNDO表空间使用率告警,查看占用情况
active段占比很高
select tablespace_name,status,sum(bytes/1024/1024) mb from dba_undo_extents group by tablespace_name,status;
select tablespace_name,status,sum(bytes/1024/1024) mb from dba_undo_extents group by tablespace_name,status;