—在优化查询SQL语句，查看索引使用情况SQL语句：
select db_name(database_id) as N‘数据库名称‘,
object_name(a.object_id) as N‘表名‘,
b.name N‘索引名称‘,
user_seeks N‘用户索引查找次数‘,
user_scans N‘用户索引扫描次数‘,
last_user_seek N‘最后查找时间‘,
last_user_scan N‘最后扫描时间‘,
rows as N‘表中的行数‘
from sys.dm_db_index_usage_stats a join
sys.indexes b
on a.index_id = b.index_id
and a.object_id = b.object_id
join sysindexes c
on c.id = b.object_id
where database_id=db_id(‘数据库名‘) --指定数据库
and object_name(a.object_id) not like ‘sys%‘
and object_name(a.object_id) like ‘表名‘ --指定索引表
and b.name like ‘索引名‘ --指定索引名称 可以先使用 sp_help ‘你的表名‘ 查看表的结构和所有的索引信息
order by user_seeks,user_scans,object_name(a.object_id)
—在优化查询SQL语句，查看索引使用情况SQL语句：
select db_name(database_id) as N‘数据库名称‘,
object_name(a.object_id) as N‘表名‘,
b.name N‘索引名称‘,
user_seeks N‘用户索引查找次数‘,
user_scans N‘用户索引扫描次数‘,
last_user_seek N‘最后查找时间‘,
last_user_scan N‘最后扫描时间‘,
rows as N‘表中的行数‘
from sys.dm_db_index_usage_stats a join
sys.indexes b
on a.index_id = b.index_id
and a.object_id = b.object_id
join sysindexes c
on c.id = b.object_id
where database_id=db_id(‘数据库名‘) --指定数据库
and object_name(a.object_id) not like ‘sys%‘
and object_name(a.object_id) like ‘表名‘ --指定索引表
and b.name like ‘索引名‘ --指定索引名称 可以先使用 sp_help ‘你的表名‘ 查看表的结构和所有的索引信息
order by user_seeks,user_scans,object_name(a.object_id)
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