I am trying to build an update manager, where we pay our commissions to our members. Some members have multiple accounts that earn commissions, but here in the USA, they have to pay taxes so our Check Processor, ADP, combines those checks for those members into one check, so the result may look something like this:

-----------------------------------------------------
|MemberId|ADPID|PayoutAmount|status|statuschanged|t
-----------------------------------------------------
|1 |101 |401.67 |Preissued|1206583466|2008-03-26 13:34:48
-----------------------------------------------------
|3 |101 |308.21 |Preissued|1206583466|2008-03-26 13:34:48
-----------------------------------------------------
|5 |101 |904.34 |Preissued|1206583466|2008-03-26 13:34:48
-----------------------------------------------------
|8 |101 |603.98 |Preissued|1206583466|2008-03-26 13:34:48
-----------------------------------------------------
[download]

So when ADP sends their checks to them and we download the check reconciliation, it would show this:

File #, Amount, Check Number, Pay Date
101, 2218.20, 10108, 03/26/2008
[download]

So, what we need to do is if they had checks spaning two pay out dates, the amount may not equal all the preissued checks it may be less so I need the automated programming to find those that equal the amount of the check they sent, for example if that adp file said this instead:

File #, Amount, Check Number, Pay Date
101, 1313.86, 10108, 03/26/2008
[download]

so it would not equal all the preissued checks, therefore, I need to find a way for Perl to find only those that have a sum of 1313.86, that are preissued and belong to that member only.

Here is how I handle it right now:

# Wrote right now, not a copy and paste, so not exact...
open(FILE, "/path/to/apd/file.csv") or die "could not open file: $!";
my @_FILE = <FILE>;
close(FILE);

foreach my $_line (@_FILE) {
  $_line =~ s/\s+//g;
  my @_fileparts = split(/,/, $_line);
  my $sth = $dbh->prepare(qq{SELECT * FROM `payouts` WHERE `status` = 
+"Preissue" AND `adp_id` = ?});
 $sth->execute($_fileparts[0]);
 while(my $_pay = $sth->fetchrow_hashref()) {
   # See this will not work because it may include the one record not 
+included in this file record that I split, so I cannot update this ch
+eck ID
 }
 $sth->finish();
}
[download]

Anyhow, I hope I made it clear what I need to do. I need to update records that may not include all of their preissued checks but find the ones that are included in the amount of the check.

Do you know of a way I can do this? I tried doing this:

$sth = $dbh->prepare(qq{ select * from payouts where SUM(amount) = ?})
+;
$sth->execute($_fileparts[2]);
[download]

But that gives me an error saying illegal grouping.

So I would appreiciate any advice you can offer, or any where you can point me.

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