sql查詢相關

– 查詢指定列所在表

select a.name,b.name as cname

from syscolumns a
left
join sysobjects b
on a.cdefault=b.id
where a.id=object_id(
'dt001_proc-4abafc26-5a8e-49d3-8af5-f5b228c87858'
)and a.name=
'dp_fvoucherno'

select

top10
*from store_store a where
notexists
(select
1from
(select
top30 ss_id from store_store order
by ss_id)a1 where a1.ss_id=a.ss_id)
order
by ss_id

mysql limit *,*

rownumber()

select

*from store_store 
order
by ss_id 
offset1*
2rows
fetch
next
3rows only

select

top10
*from
(select row_number(
)over
(partition
by 分組條件1
,分組條件2
order
by 順序條件 desc
)as rownum, 查詢結果字段
from 查詢表
) twhere t.rownum =
1

declare

@sqll
varchar
(1000)=
''select
@sqll
=@sqll
+'['
+a.wu_state+
'],'
from
(select
distinct wx001_users.wu_state
from wx001_users/*列的值*/
) aset
@sqll
=substring(
@sqll,0
,len
(@sqll))
-- select substring(@sqll,0,len(@sqll))
declare
@rzcsql
varchar
(max)=''
set@rzcsql='
select * from (select wu_id,wu_gender,wu_state
from wx001_users
group by wu_state,wu_id,wu_gender
) /*資料來源*/
as p
pivot 
(    count(p.wu_id/*行轉列後 列的值*/) 
for 
p.wu_state/*需要行轉列的列*/ 
in ('
+@sqll+'
)) as t'
-- select @rzcsql
exec
(@rzcsql
)

sql查詢相關

select from 表名 a where a.日期字段 to date yyyy mm dd and a.日期字段 to date yyyy mm dd 和 為前端傳參，string型別的，需要先to date進行轉換格式 yyyy mm dd 是匹配資料庫中 date 欄位存的格式 是用來代替...

SQL相關路徑查詢指令碼

1.查詢機器名 select servername as 機器名稱 查詢已安裝的sql例項名 select from sys.servers 2.查詢sql安裝路徑 declare installpath varchar 200 exec master.dbo.xp regread hkey loc...

SQL相關路徑查詢指令碼

1.查詢機器名 select servername as 機器名稱 查詢已安裝的sql例項名 select from sys.servers 2.查詢sql安裝路徑 declare installpath varchar 200 exec master.dbo.xp regread hkey loc...