《DBMS_STATS常用方法（收集oracle信息）》的评论 https://www.xifenfei.com/2011/05/dbms_stats%e5%b8%b8%e7%94%a8%e6%96%b9%e6%b3%95%ef%bc%88%e6%94%b6%e9%9b%86oracle%e4%bf%a1%e6%81%af%ef%bc%89.html 提供7*24专业数据库(Oracle,SQL Server,MySQL,PostgreSQL等)恢复和技术支持@Tel:17813235971 Thu, 11 Dec 2025 02:46:14 +0000 hourly 1 作者：惜 分飞 https://www.xifenfei.com/2011/05/dbms_stats%e5%b8%b8%e7%94%a8%e6%96%b9%e6%b3%95%ef%bc%88%e6%94%b6%e9%9b%86oracle%e4%bf%a1%e6%81%af%ef%bc%89.html/comment-page-1#comment-134 Sun, 04 Sep 2011 04:27:43 +0000 https://www.xifenfei.com/?p=1064#comment-134 备份统计信息
BEGIN
DBMS_STATS.CREATE_STAT_TABLE (‘hr’, ‘savestats’);
DBMS_STATS.GATHER_TABLE_STATS (‘hr’, ‘employees’, stattab => ‘savestats’);
END;

恢复统计信息
BEGIN
DBMS_STATS.DELETE_TABLE_STATS (‘hr’, ‘employees’);
DBMS_STATS.IMPORT_TABLE_STATS (‘hr’, ‘employees’, stattab => ‘savestats’);
END;

Note:savestats表可以删除，可以考虑加上force=true，相关的index也做同样处理

]]>