在SQL server 2000中如何查询某字段是否包含在一个字符串中?
比如
字段 a 的值是:AA6AD000,AA6AD089等
如何查询 a 是否包含在字符串“CCCAA6AD000XYZ”中的记录呢?PATINDEX 函数查不出来,谢谢了
比如
字段 a 的值是:AA6AD000,AA6AD089等
如何查询 a 是否包含在字符串“CCCAA6AD000XYZ”中的记录呢?PATINDEX 函数查不出来,谢谢了
AA6AD000
AA6AD089
用charindex(a , 'CCCAA6AD000XYZ') > 0
字段 a 的值是:AA6AD000,AA6AD089等
需要拆分后再用:charindex(a , 'CCCAA6AD000XYZ') > 0
/*
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)
*/
AA6AD000
AA6AD089
用charindex(a , 'CCCAA6AD000XYZ') > 0
查询不出来呀?
insert into tb values('AA6AD000')
insert into tb values('AA6AD089')
goselect * from tb where charindex(a , 'CCCAA6AD000XYZ') > 0drop table tb/*
a
----------
AA6AD000(所影响的行数为 1 行)*/
drop table a
gocreate table a
(
a varchar(20)
)
goinsert into a
select 'abc'
union all
select 'bcd'
goselect *
from a
where charindex(a,'abcdefg')>0
go