Question

我有一个数据集（大约900k行），我需要根据'（'或'）'分割数据。例如表A数据： -

> Vendor      Is_Active
 ABC(1263)        1
 efgh (187        1
 pqrs 890ag)      1
 xyz              1
 lmno(488)        1
 (9867-12)        1

输出

 ID        Name   
 1263      ABC    
 187      efgh   
 890ag    pqrs
          xyz
 488      lmno
 9867-12

我尝试了查询

      SELECT
                vendor,
                CASE WHEN vendor LIKE '%(%' OR      vendor LIKE '%)%' 
    THEN REPLACE(REPLACE(RIGHT(Vendor, charindex(' ', reverse(vendor)) - 1),'(',''),')','') 
END AS 'test'
        FROM
                tableA

错误： - 消息536，级别16，状态4，行13无效长度参数传递给RIGHT函数。

Answer 1

嗯。我在想：

select v.*, v2.name,
       replace(stuff(v.x, 1, len(v2.name) + 1, ''), ')', '') as id
from (values ('ABC(1263)'), ('abc'), ('(1234)')) v(x) cross apply
     (values (left(v.x, charindex('(', v.x + '(') - 1))) v2(name);

我发现apply对重复的字符串操作很有用。

Answer 2

SELECT 
(CASE WHEN Vendor LIKE '%(%)' THEN SUBSTRING(Vendor,CHARINDEX('(',Vendor)+1,CHARINDEX(')',Vendor)-CHARINDEX('(',Vendor)-1)
        WHEN Vendor LIKE '%(%' THEN SUBSTRING(Vendor,CHARINDEX('(',Vendor)+1,LEN(Vendor))
        WHEN Vendor LIKE '%)%' THEN SUBSTRING(Vendor,CHARINDEX(' ',Vendor)+1,(CHARINDEX(')',Vendor)-CHARINDEX(' ',Vendor))-1)

ELSE ''
END )AS ID ,

(CASE WHEN Vendor LIKE '%(%)' THEN SUBSTRING(Vendor,1,CHARINDEX('(',Vendor)-1) 
  WHEN Vendor LIKE '%(%' THEN SUBSTRING(Vendor,1,CHARINDEX('(',Vendor)-1)
  WHEN Vendor LIKE '%)%' THEN SUBSTRING(Vendor,1,CHARINDEX(' ',Vendor))

ELSE Vendor END ) AS Name
FROM Table A

Answer 3

您可以删除字符(和)，然后搜索号码。检查此查询

declare @t table (
    vendor varchar(100)
)

insert into @t values
('ABC(1263)')
,('efgh (187')
,('pqrs 890ag)')
,('xyz')
,('lmno(488)')
,('(9867-12)')

select 
    ID = case when p = 0 then '' else substring(v, p, len(v)) end
    , Name = case when p = 0 then v else left(v, p - 1) end
from 
    @t
    cross apply (select v = replace(replace(vendor, '(', ''), ')', '')) q1
    cross apply (select p = patindex('%[0-9]%', v)) q2

输出

ID         Name
---------------
1263       ABC
187        efgh 
890ag      pqrs 
           xyz
488        lmno
9867-12

像运算符SQL一样

3 个答案: