[NTLUG:Discuss] Filtering a list with a list

[Daniel Hauck]

These are plain text flat files.

Ralph Green さんは書きました:
> Howdy,
>   Assuming these entries are in a SQL database,
>   Select email_id from source.email_id
>  where email_id not in select email_id from exclusion.email_id email_id 
> 
> If that does not answer your question, could you add more information.
> Is your data in two text files, python dictionaries, or what?
> Good luck,
> Ralph 
> 
> On Fri, 2009-03-06 at 19:36 -0600, Daniel Hauck wrote:
>> I have a process that generates a list of valid email addresses for a
>> system.  I would like to be able to filter that list by removing all
> 
>> So the question is, what tool(s) do I use to do this?  I'm guessing
>> there is a simple way to do it. I just don't know what it is.