怎么过滤下面这种情况
有一组数据
id
12,2,3
1,4,5
还有一组数据
id
1
2
3
4
5
6
7
查询第二组数据 id不在第一组数据(id列是,号隔开的)中的数据
得到:
6
7
[解决办法]
----------------------------------------------------------------
-- Author :DBA_Huangzj(發糞塗牆)
-- Date :2013-12-25 17:27:29
-- Version:
-- Microsoft SQL Server 2012 (SP1) - 11.0.3128.0 (X64)
--Dec 28 2012 20:23:12
--Copyright (c) Microsoft Corporation
--Enterprise Edition (64-bit) on Windows NT 6.2 <X64> (Build 9200: )
--
----------------------------------------------------------------
--> 测试数据：[A]
if object_id('[A]') is not null drop table [A]
go
create table [A]([id] varchar(6))
insert [A]
select '12,2,3' union all
select '1,4,5'
--> 测试数据：[B]
if object_id('[B]') is not null drop table [B]
go
create table [B]([id] int)
insert [B]
select 1 union all
select 2 union all
select 3 union all
select 4 union all
select 5 union all
select 6 union all
select 7
--------------开始查询--------------------------
;WITH cte AS
(select
CONVERT(varchar(2),SUBSTRING([id],number,CHARINDEX(',',[id]+',',number)-number)) as [id]
from
[A] a,master..spt_values
where
number >=1 and number<=len([id])
and type='p'
and substring(','+[id],number,1)=',')
select b.* from [B] b LEFT JOIN cte a ON b.id=a.id
WHERE a.id IS NULL
/*
id
-----------
6
7
*/
