oracle 快照(snapshot) 管理



----手工创建oracle 快照
BEGIN
DBMS_WORKLOAD_REPOSITORY.CREATE_SNAPSHOT ();
END;
/


---删除快照
详细快照信息能够查看视图 DBA_HIST_SNAPSHOT

BEGIN
DBMS_WORKLOAD_REPOSITORY.DROP_SNAPSHOT_RANGE (low_snap_id => 22,
high_snap_id => 32, dbid => 3310949047);
END;
/


---改动快照设置
BEGIN
DBMS_WORKLOAD_REPOSITORY.MODIFY_SNAPSHOT_SETTINGS( retention => 43200, interval => 30, topnsql => 100, dbid => 3310949047);
END;
/

/* retention :43200 minutes (30 days) ;interval:30 minutes ;topsql:    */
通过视图  DBA_HIST_WR_CONTROL 查看当前快照參数配置。

posted @ 2014-11-08 11:37  blfshiye  阅读(1328)  评论(0编辑  收藏  举报