Trap Constraint Errors from perl DBI

Hi,
Is there a list of Error Codes and Messages posted some where.  I
couldn't find one.

I'm trying to use trap errors caused by database constraints using perl
DBI.  ie: -

create table foo (id, user, name,
constraint foo_user_name_ind unique (user, name);

...

my $insert = "insert into foo (user, name) values ('dlink', 'fish')";
my $err = "";
$dbh->do($insert) or $err = DBI::err;
if ($err) {
    my $errstr = DBI::errstr;
    print "Error: $err\n";
    print DBI::errstr, "\n";
}

By doing this I see that "ERROR: Cannot insert a duplicate key into
unique index X" has an error number 7.

Thanks.


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