Load duplicates (2 messages)

Hi group,

My perl skills are basic and my SQL skills almost match that.
Using perl 5.28 and mysql on windows.

I have a couple million records that needs processing to go to their final
destination.
Currently I'm catchin duplicates with error 1062 in perl and using that to
write the duplicate records to a separate table for later processing.

Question: Can DBI give me a field from the record on the main table causing
the duplicate so I can add that to the record going to the duplicate table?

Example:
MAIN table fields = "auto_increment", acct, comp,accr,desc,etc.... :
(auto_increment created when records are added, rest is the source record)
Duplicate table fields = "auto_increment from MAIN table",
acct,comp,accr,desc,etc.....

Thanks
Ian