排查数据库性能的常用sql语句

SELECT  索引名称 = a.name ,
表名 = c.name ,
索引字段名 = d.name ,
索引字段位置 = d.colid,
c.crdate
FROM    sysindexes a
JOIN sysindexkeys b ON a.id = b.id
AND a.indid = b.indid
JOIN sysobjects c ON b.id = c.id
JOIN syscolumns d ON b.id = d.id
AND b.colid = d.colid
WHERE   a.indid NOT IN ( 0, 255 )
-- and   c.xtype='U'   and   c.status>0 --查所有用户表
--AND c.name = 'ORDER' --查指定表
ORDER BY
c.crdate desc,
c.name ,
a.name ,