Check index usage: https://www.cnblogs.com/sunliyuan/p/6559354.html
select
db_name(database_id)
as
N
'TOPK_TO_DEV'
,
--库名
object_name(a.object_id)
as
N
'TopProjectNew'
,
--表明
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(
'TOPK_TO_DEV'
)
---改成要查看的数据库
and
object_name(a.object_id)
not
like
'sys%'
order
by
user_seeks,user_scans,object_name(a.object_id)
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