最好先
DBCC UPDATEUSAGE SELECT o.name AS "Table Name", i.rowcnt AS "Row Count" FROM sysobjects o, sysindexes i WHERE i.id = o.id AND i.indid IN(0,1) AND o.xtype = 'u' --只统计用户表 AND o.name <> 'sysdiagrams' ORDER BY i.rowcnt DESC --按行排降序