---------------------------------------------------- /*如何将一列中所有的值一行显示 数据源 a b c d e 结果 a,b,c,d,e */create table tb(col varchar(20)) insert tb values ('a') insert tb values ('b') insert tb values ('c') insert tb values ('d') insert tb values ('e') go--方法一 declare @sql varchar(1000) set @sql = '' select @sql = @sql + t.col + ',' from (select col from tb) as t set @sql='select result = ''' + left(@sql , len(@sql) - 1) + '''' exec(@sql) /* result ---------- a,b,c,d,e, */--方法二 declare @output varchar(8000) select @output = coalesce(@output + ',' , '') + col from tb print @output /* a,b,c,d,e */---方法三 declare @s varchar(1000) select @s=isnull(@s+',' , '')+col from tb select @s /* a,b,c,d,e */drop table tb -------------
use Tempdb go --> -->
if not object_id(N'Tempdb..#T') is null drop table #T Go Create table #T([A列] nvarchar(2)) Insert #T select N'产品' union all select N'贸易' union all select N'工厂' Go DECLARE @s NVARCHAR(1000) Select @s=ISNULL(@s+',','')+[A列] from #T SELECT @s AS [A列] GO SELECT STUFF((SELECT ','+[A列] FROM #T FOR XML PATH('')),1,1,'')[A列]
/*如何将一列中所有的值一行显示
数据源
a
b
c
d
e
结果
a,b,c,d,e
*/create table tb(col varchar(20))
insert tb values ('a')
insert tb values ('b')
insert tb values ('c')
insert tb values ('d')
insert tb values ('e')
go--方法一
declare @sql varchar(1000)
set @sql = ''
select @sql = @sql + t.col + ',' from (select col from tb) as t
set @sql='select result = ''' + left(@sql , len(@sql) - 1) + ''''
exec(@sql)
/*
result
----------
a,b,c,d,e,
*/--方法二
declare @output varchar(8000)
select @output = coalesce(@output + ',' , '') + col from tb
print @output
/*
a,b,c,d,e
*/---方法三
declare @s varchar(1000)
select @s=isnull(@s+',' , '')+col from tb
select @s
/*
a,b,c,d,e
*/drop table tb
-------------
go
--> -->
if not object_id(N'Tempdb..#T') is null
drop table #T
Go
Create table #T([A列] nvarchar(2))
Insert #T
select N'产品' union all
select N'贸易' union all
select N'工厂'
Go
DECLARE @s NVARCHAR(1000)
Select @s=ISNULL(@s+',','')+[A列] from #T
SELECT @s AS [A列]
GO
SELECT STUFF((SELECT ','+[A列] FROM #T FOR XML PATH('')),1,1,'')[A列]