如何从sql server表

Question

我有一个表，包括Customer_Contact_No，Name，Income。我希望将客户净收入作为收入列的值。

最终输出应如下所示。我的表中有100000多行。

AF-4838 - 加扬先生是博士和他的薪水 - RS.95000 / - 。他有一块椰子土地，月收入为150000卢比/ - 。他的费用--55000卢比和他的净收入--Rs.190000 / -

AV-7392 - 每月净收入为55000 / -

AF-3746 - 妻子的工资-25,000，他是店主，商店的月收入= 100000卢比/ - 当月的净收入是卢比。 80000 / - 费用为45,000卢比

AF-6453 - 每月总收入为60000 /

Answer 1

您可以使用嵌套的CHARINDEX函数获取子字符串起点后的第一个数字值“净收入”。

Answer 2

UDF将根据两个非类似分隔符

提取字符串

您可能会注意到我将“净收入”替换为“||净收入”我这样做是为了让我的第一个分隔符为“|||”并且还为我的第二个分隔符“/”在字符串的末尾添加了一个“/”。这可以确保字符串至少有一个“/”

示例

Select A.customer_contact_no
      ,Income = try_convert(int,right(B.RetVal,charindex(' ',replace(reverse(RetVal),'.',' '))-1))
 From  YourTable A
 Cross Apply [dbo].[udf-Str-Extract](replace([Income],'Net Income','|||Net Income')+'/','|||','/') B
 Where RetVal Like 'Net Income%'

<强>返回

感兴趣的UDF

CREATE FUNCTION [dbo].[udf-Str-Extract] (@String varchar(max),@Delimiter1 varchar(100),@Delimiter2 varchar(100))
Returns Table 
As
Return (  

with   cte1(N)   As (Select 1 From (Values(1),(1),(1),(1),(1),(1),(1),(1),(1),(1)) N(N)),
       cte2(N)   As (Select Top (IsNull(DataLength(@String),0)) Row_Number() over (Order By (Select NULL)) From (Select N=1 From cte1 N1,cte1 N2,cte1 N3,cte1 N4,cte1 N5,cte1 N6) A ),
       cte3(N)   As (Select 1 Union All Select t.N+DataLength(@Delimiter1) From cte2 t Where Substring(@String,t.N,DataLength(@Delimiter1)) = @Delimiter1),
       cte4(N,L) As (Select S.N,IsNull(NullIf(CharIndex(@Delimiter1,@String,s.N),0)-S.N,8000) From cte3 S)

Select RetSeq = Row_Number() over (Order By N)
      ,RetPos = N
      ,RetVal = left(RetVal,charindex(@Delimiter2,RetVal)-1) 
 From  (
        Select *,RetVal = Substring(@String, N, L) 
         From  cte4
       ) A
 Where charindex(@Delimiter2,RetVal)>1

)
/*
Max Length of String 1MM characters

Declare @String varchar(max) = 'Dear [[FirstName]] [[LastName]], ...'
Select * From [dbo].[udf-Str-Extract] (@String,'[[',']]')
*/

Answer 3

declare @test table
(
    val varchar(300)
)

INSERT INTO @test 
select 'blah blah blah net income blah blah 86000'

INSERT INTO @test 
select 'blah blah blah net income blah blah 4000, expenses 0'

INSERT INTO @test 
select 'blah blah blah net income blah blah 80,000 g'

INSERT INTO @test 
select 'blah expenses are 60 blah blah net income blah blah 6000 blah '

INSERT INTO @test 
select 'blah net income for whatever 6000. blah blah net income blah blah 86000'

select replace(substring(val,0, CASE WHEN PATINDEX('%[^0-9,]%',val) = 0 THEN len(val) + 1 ELSE PATINDEX('%[^0-9,]%',val) END),',','') as NetIncomes
from
(
    select substring(val, inc, len(val) - inc + 1) as val
    from
    (
        select substring(val,net,len(val) - net + 1) as val, PATINDEX('%[0-9]%',substring(val,net,len(val) - net + 1)) as inc
        from
        (
            select val, len(val) - charindex('emocni ten', reverse(val)) as  net
            from @test
        )q
    )q2
)q3

如果您愿意，也可以使用CTE执行此操作

declare @test table
(
    val varchar(300)
)

INSERT INTO @test 
select 'blah blah blah net income blah blah 86000'

INSERT INTO @test 
select 'blah blah blah net income blah blah 4000, expenses 0'

INSERT INTO @test 
select 'blah blah blah net income blah blah 80,000 g'

INSERT INTO @test 
select 'blah expenses are 60 blah blah net income blah blah 6000 blah '

INSERT INTO @test 
select 'blah net income for whatever 6000. blah blah net income blah blah 86000'


;WITH FindNetIncomeString AS (select val, len(val) - charindex('emocni ten', reverse(val)) as  net from @test),
      FindFirstNumeric AS (select substring(val,net,len(val) - net + 1) as val, PATINDEX('%[0-9]%',substring(val,net,len(val) - net + 1)) as inc from FindNetIncomeString),
      GetNumericOnly AS (select substring(val, inc, len(val) - inc + 1) as val from FindFirstNumeric),
      GetNetIncome as (select replace(substring(val,0, CASE WHEN PATINDEX('%[^0-9,]%',val) = 0 THEN len(val) + 1 ELSE PATINDEX('%[^0-9,]%',val) END),',','') as NetIncomes from GetNumericOnly)
select NetIncomes
from GetNetIncome;

结果

NetIncomes
------
86000
4000
80000
6000
86000

使用非CTE进行测试：http://rextester.com/LGFW6563

使用CTE进行测试：http://rextester.com/SRTG30852