由于业务需求,我们可能会把一串以分割符字符串数据放到一个字段,如我们在客户端处理拆分是很简单的,不过这样做效果不太好,怎么用sql SERVER 2008 来解决这件事件哪?
方案1
1 ----> 生成测试数据: @T
2 DECLARE @T TABLE (id INT,Col1 VARCHAR(50),Col2 VARCHAR(50))
3 INSERT INTO @T
4 SELECT 1,'卸货费','运输车队业务,客服接单业务'
5 UNION ALL
6 SELECT 2,'报关费','报关业务、客服接单业务'
----SQL查询如下:
SELECT
T.id,
A.x.value('.','varchar(10)') AS code,
B.x.value('.','varchar(10)') AS code2
FROM (
SELECT *,doc = CONVERT(xml,'<v>'+REPLACE(code,','</v><v>')+'</v>'),
doc2=CONVERT(xml,'<v>'+REPLACE(code2,'</v><v>')+'</v>')
FROM @T
) AS T
CROSS APPLY doc.nodes('//v') AS A(x)
CROSS APPLY doc2.nodes('//v') AS B(x)
方案2
1 WITH roy
2 AS ( SELECT Col1,
3 COl2 = CAST(LEFT(Col2,CHARINDEX(',Col2 + ',') - 1) AS NVARCHAR(100)),
4 Split = CAST(STUFF(COl2 + ',1,
5 CHARINDEX(','),'') AS NVARCHAR(100))
6 FROM Tab
7 UNION ALL
8 SELECT Col1,
9 COl2 = CAST(LEFT(Split,Split) - 1) AS NVARCHAR(100)),
10 Split = CAST(STUFF(Split,Split),'') AS NVARCHAR(100))
11 FROM Roy
12 WHERE split > ''
13 )
14 SELECT COl1,
15 COl2
16 FROM roy
17 ORDER BY COl1
18 OPTION ( MAXRECURSION 0 )
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