On Tue, Aug 14, 2001 at 11:12:23AM +1000, Neil Lunn wrote:
> Use something like this as the record source for items with duplicate email
> addresses:
>
> select *
> from table
> where email in (
> select email
> from table
> group by email
> having count(*) > 1)
>
> and delete every sec
>-Original Message-
>From: Bart Lateur [mailto:[EMAIL PROTECTED]]
>Sent: Tuesday, August 14, 2001 8:30 PM
>To: [EMAIL PROTECTED]
>Subject: Re: Removing duplicate records - OT
>
>
>On Tue, 14 Aug 2001 11:12:23 +1000, Neil Lunn wrote:
>
>>Use something l
On Tue, 14 Aug 2001 11:12:23 +1000, Neil Lunn wrote:
>Use something like this as the record source for items with duplicate email
>addresses:
>
>select *
>from table
>where email in (
> select email
> from table
> group by email
> having count(*) > 1)
>
>and delete every second record.
Next
ord.
>-Original Message-
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
>Sent: Sunday, August 12, 2001 10:49 PM
>To: [EMAIL PROTECTED]
>Subject: Removing duplicate records - OT
>
>
>Hello all,
>
>Sorry about the off-topic question, but this has been driving
>m
Build a hash where the key is the email address, and the value
is the whole record:
my %email_hash = ();
while () {
### use "unpack" or "split" to get fields from line ###
if (! exists($email_hash{$email})) {
$email_hash{$email} = $_;
}
}
You would end up with a hash containing on
