Regular expression for email

Hi all,
Can anyone help me to create a regular expression validation for email id? I have tried many combinations from internet regarding this validation, but everyone fails on APEX, although it runs fine in .NET or JAVA.
Expressions i tried was "^([\w\-\.]+)@((\[([0-9]{1,3}\.){3}[0-9]{1,3}\])|(([\w\-]+\.)+)([a-zA-Z]{2,4}))$", i want to validate email address such as "[email protected]". Can anyone help me in this regard?
With Regards,
Sunil Bhatia

Hello Sunil,
>> Can anyone help me to create a regular expression validation for email id?
If you are talking about an email address, it’s not clear to me why you include the ‘http’ string in your regular expression. In any case, I’m using the following:
^[a-zA-Z0-9]{1}[a-zA-Z0-9\.\-]{1,}@[a-zA-Z0-9]{1}[a-zA-Z0-9\.\-]{1,}\.{1}[a-zA-Z]{2,4}$Regards,
Arie.
Please remember to mark appropriate posts as correct/helpful. For the long run, it will benefit us all.

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Regular expression for email address formats

I have the following regulare expression which I am using to validate email address format.
This allows addresses of the form
[email protected]
^[-a-zA-Z0-9._]+\@[-a-zA-Z0-9]+\.[-a-zA-Z0-9]+\.[-a-zA-Z0-9]+$
And of course this allows addresses of the form
[email protected]
^[-a-zA-Z0-9._]+\@[-a-zA-Z0-9]+\.[-a-zA-Z0-9]+$
What I'm looking for is something which will allow both.

This way
'^[-a-zA-Z0-9._]+\@[-a-zA-Z0-9.]+$' would allow both. :-)
with test_data as
( select '[email protected]' as val from dual union all
select '[email protected]'   as val from dual union all
select 'no#good'              as val from dual
select
val ,
case
    when regexp_like( val, '^[-a-zA-Z0-9._]+\@[-a-zA-Z0-9.]+$' ) then 'Y'
    else 'N'
    end
    as good
from test_data ;
VAL                  G
[email protected] Y
[email protected]   Y
no#good              NBut then again, it would also allow "[email protected]" and "[email protected]" too. So I suspect you don't really want something that simply allows your two cases to pass validation. If you want to allow only those two cases then try something like this.
with test_data as
( select '[email protected]'     as val from dual union all
select '[email protected]'       as val from dual union all
select '[email protected]' as val from dual union all
select '[email protected]'      as val from dual union all
select 'no#good'                  as val from dual
select
val ,
case
    when
      regexp_like
      ( val
      , '^[-a-zA-Z0-9._]+\@[-a-zA-Z0-9]+\.[-a-zA-Z0-9]+(\.[-a-zA-Z0-9]+)?$'
      ) then 'Y'
    else 'N'
    end
    as good
from test_data ;
VAL                      G
[email protected]     Y
[email protected]       Y
[email protected] N
[email protected]      N
no#good                  N--
Joe Fuda
SQL Snippets
Message was edited by SnippetyJoe - added clarification.

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Regular expression for email

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