相关疑难解决方法(0)

在SQL语句(或过程)中,我想将此表的行折叠为单个逗号分隔的字符串.

simpleTable

id  value
--  ----- 
1    "a"
2    "b"
3    "c"

折叠为:

"a, b, c"

考虑以下tsql ...

create function dbo.wtfunc(@s varchar(50)) returns varchar(10) begin return left(@s, 2); end
GO
select t.* into #test from (
    select 'blah' as s union
    select 'foo' union
    select 'bar'
) t
select * from #test;

declare @s varchar(100); 
set @s = '';

select @s = @s + s from #test order by s;
select @s;
set @s = '';
select @s = @s + s from #test order by dbo.wtfunc(s);
select @s;
/* 2005 only*/
select cast((select s+'' from …