Question

大家好，还有一个有趣的问题。

假设我们有一个这样的电子邮件ID： -

Adventure2008Works.DW@microsoft.com

所以现在的问题是将所有这些角色，特殊字符，数字分开并展示出来在三个单独的列中显示如下。

Character                       | Special Character | Numbers
_____________________________________________________________
AdventureWorksDWmicrosoftcom    |  .@.              | 2008

Answer 1

我会在.NET RegEx类上创建CLR包装器。这是an example。

Answer 2

这是功能：

create function f_tst
(
@txt nvarchar(1000)
) returns table
as
return (with x as
(
select case when substring(@txt, number, 1) like '[a-zA-Z]' then substring(@txt, number, 1)
else '' end a,
case when substring(@txt, number, 1) like '[0-9]' then substring(@txt, number, 1)
else '' end b,
case when substring(@txt, number, 1) NOT like '[a-zA-Z0-9]' then substring(@txt, number, 1)
else '' end c
 from
master..spt_values
where type = 'P'
and number < len(@txt)
)

select distinct( select [a] 
        from x t1 
        for xml path(''), type 
    ).value('.', 'varchar(max)') [Character],
    ( select [c] 
        from x t1 
        for xml path(''), type 
    ).value('.', 'varchar(max)') [Special Character] ,
    ( select [b] 
        from x t1 
        for xml path(''), type 
    ).value('.', 'varchar(max)') [Numbers] 
from x t) 

go

您可以像这样测试单行：

 select * from f_tst('Adventure2008Works.DW@microsoft.com')

您可以从以下表格中获取列：

declare @t table(txt nvarchar(1000))
insert @t values
('Adventure2008Works.DW@microsoft.com'),
('Adventure2008Wo12ks.DW@"t...')

select * from @t cross apply dbo.f_tst(txt)

结果：

txt                                 Character                Special Character Numbers
Adventure2008Works.DW@microsoft.com AdventureWorksDWmicrosoftco .@.            2008
Adventure2008Wo12ks.DW@"t...        AdventureWoksDWt            .@"..         200812

Answer 3

你可以试试这个，

DECLARE @strAlphaNumericMain VARCHAR(256)
DECLARE @strAlphaNumeric VARCHAR(256)
DECLARE @Expr1 VARCHAR(255), @Expr2 VARCHAR(255), @Expr3 VARCHAR(255)
DECLARE @OnlyCharacter VARCHAR(MAX),@OnlyNumber VARCHAR(MAX),@OnlySplChar VARCHAR(MAX) 

SET @strAlphaNumericMain = 'Adventure2008Works.DW@microsoft.com'
SET @strAlphaNumeric = 'Adventure2008Works.DW@microsoft.com'
SET @Expr1 =  '%['+'@.'+']%'
SET @Expr2 =  '%['+'a-z0-9'+']%'
SET @Expr3 =  '%['+'^0-9'+']%'

WHILE PatIndex(@Expr1, @strAlphaNumeric) > 0
SET @strAlphaNumeric = Stuff(@strAlphaNumeric, PatIndex(@Expr1, @strAlphaNumeric), 1, '')
SET @OnlyCharacter = @strAlphaNumeric

SET @strAlphaNumeric = @strAlphaNumericMain
WHILE PatIndex(@Expr2, @strAlphaNumeric) > 0
SET @strAlphaNumeric = Stuff(@strAlphaNumeric, PatIndex(@Expr2, @strAlphaNumeric), 1, '')
SET @OnlyNumber = @strAlphaNumeric

SET @strAlphaNumeric = @strAlphaNumericMain
WHILE PatIndex(@Expr3, @strAlphaNumeric) > 0
SET @strAlphaNumeric = Stuff(@strAlphaNumeric, PatIndex(@Expr3, @strAlphaNumeric), 1, '')
SET @OnlySplChar = @strAlphaNumeric

SELECT @strAlphaNumericMain, @OnlyCharacter,@OnlyNumber,@OnlySplChar

主要来源：here

从电子邮件ID中分隔字符，特殊字符和数字

3 个答案: