declare @tb table(id int identity(1,1) not null,name nvarchar(5))
insert into @tb values('中'),('国'),('人'),('民')
declare @str varchar(50)
 set @str=''
select  @str=@str+'+'+ name from @tb
select RIGHT(@str,LEN(@str)-1 )
  
--------------------------------------------------
中+国+人+民

(1 行受影响)

------解决方案--------------------
----------------------------------------------------
/*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
*/

drop table tb

------解决方案--------------------
SQL code

WITH #001
AS(
SELECT 1 AS id,'中' AS id_name 
UNION ALL
SELECT 2 AS id,'国' AS id_name 
UNION ALL
SELECT 3 AS id,'人' AS id_name 
UNION ALL
SELECT 4 AS id,'民' AS id_name 
)

SELECT [拼接] = STUFF(( SELECT   '+' + [id_name] 
                       FROM     #001 ORDER BY id 
                     FOR
                       XML PATH('')
                     ), 1, 1, '')  

--输出:

拼接

中+国+人+民

(1 行受影响)

------解决方案--------------------
SQL code

WITH #001
AS(
SELECT 1 AS id,'中' AS id_name 
UNION ALL
SELECT 2 AS id,'国' AS id_name 
UNION ALL
SELECT 3 AS id,'人' AS id_name 
UNION ALL
SELECT 4 AS id,'民' AS id_name 
)

SELECT [拼接] = STUFF(( SELECT   '+' + [id_name] 
                       FROM     #001 ORDER BY id 
                     FOR
                       XML PATH('')
                     ), 1, 1, '')  

--结果：
拼接
中+国+人+民

(1 行受影响)