TravelZoneTable景区表
id (id)
title(景区全称)
SimpTitle(景区简称)
Content(介绍)TravelLineTable(旅游线路表)
Lid(线路id)
LineName(线路名称)
LineTHroZone(线路经过的景区,多景区之间用|分开,与SimpTitle对应)
LineSort(线路类型,如休闲游,美食游等。)
想查询某一线路类型的相关的景区列表,怎么实现景区表里的景区简称与线路表里的LineTHroZone对应?
select title from TravelZoneTable where SimpTitle ??? (select LineTHroZone from TravelLineTable where LineSort='休闲游')
id (id)
title(景区全称)
SimpTitle(景区简称)
Content(介绍)TravelLineTable(旅游线路表)
Lid(线路id)
LineName(线路名称)
LineTHroZone(线路经过的景区,多景区之间用|分开,与SimpTitle对应)
LineSort(线路类型,如休闲游,美食游等。)
想查询某一线路类型的相关的景区列表,怎么实现景区表里的景区简称与线路表里的LineTHroZone对应?
select title from TravelZoneTable where SimpTitle ??? (select LineTHroZone from TravelLineTable where LineSort='休闲游')
标题:简单数据拆分(version 2.0)
作者:爱新觉罗.毓华(十八年风雨,守得冰山雪莲花开)
时间:2010-05-07
地点:重庆航天职业学院
描述:有表tb, 如下:
id value
----------- -----------
1 aa,bb
2 aaa,bbb,ccc
欲按id,分拆value列, 分拆后结果如下:
id value
----------- --------
1 aa
1 bb
2 aaa
2 bbb
2 ccc
*/--1. 旧的解决方法(sql server 2000)create table tb(id int,value varchar(30))
insert into tb values(1,'aa,bb')
insert into tb values(2,'aaa,bbb,ccc')
go--方法1.使用临时表完成
SELECT TOP 8000 id = IDENTITY(int, 1, 1) INTO # FROM syscolumns a, syscolumns b SELECT A.id, value = SUBSTRING(A.[value], B.id, CHARINDEX(',', A.[value] + ',', B.id) - B.id)
FROM tb A, # B
WHERE SUBSTRING(',' + A.[value], B.id, 1) = ','DROP TABLE #--方法2.如果数据量小,可不使用临时表
select a.id , value = substring(a.value , b.number , charindex(',' , a.value + ',' , b.number) - b.number)
from tb a join master..spt_values b
on b.type='p' and b.number between 1 and len(a.value)
where substring(',' + a.value , b.number , 1) = ','--2. 新的解决方法(sql server 2005)
create table tb(id int,value varchar(30))
insert into tb values(1,'aa,bb')
insert into tb values(2,'aaa,bbb,ccc')
go--方法1.使用xml完成
SELECT A.id, B.value FROM
(
SELECT id, [value] = CONVERT(xml,'<root><v>' + REPLACE([value], ',', '</v><v>') + '</v></root>') FROM tb
) A OUTER APPLY
(
SELECT value = N.v.value('.', 'varchar(100)') FROM A.[value].nodes('/root/v') N(v)
) B--方法2.使用CTE完成
;with tt as
(select id,[value]=cast(left([value],charindex(',',[value]+',')-1) as nvarchar(100)),Split=cast(stuff([value]+',',1,charindex(',',[value]+','),'') as nvarchar(100)) from tb
union all
select id,[value]=cast(left(Split,charindex(',',Split)-1) as nvarchar(100)),Split= cast(stuff(Split,1,charindex(',',Split),'') as nvarchar(100)) from tt where split>''
)
select id,[value] from tt order by id option (MAXRECURSION 0)
DROP TABLE tb/*
id value
----------- ------------------------------
1 aa
1 bb
2 aaa
2 bbb
2 ccc(5 行受影响)
*/参考
select T.title
from TravelZoneTable T,LineTHroZone L
where CHARINDEX(','+T.SimpTitle+',',','+ L. LineTHroZone +',')>0
and L.LineSort=N'休闲游'
=============
修正三楼SELECT T.TITLE
FROM TRAVELZONETABLE T,LINETHROZONE L
WHERE CHARINDEX('|'+T.SIMPTITLE+'|','|'+ L. LINETHROZONE +'|')>0
AND L.LINESORT=N'休闲游'
select TravelZoneID,TravelZoneFullName from TravelZoneTable t1,TravelLineTable t2 where charindex(t1.TravelZoneName,t2.TravelThroughSpot)<>0 and t2.TravelLineClass='休闲游'