or download this
my $dbh = DBI->connect("DBI:mysql:$db_name1:$db_host1:$db_port1","$db_
+user1","$db_pw1", {RaiseError => 1, PrintError => 0, mysql_enable_utf
+8 => 1, ChopBlanks =>0});
...
my $RowSet = $dbh->selectall_arrayref("SELECT * FROM CollectionDB.ISI
+S WHERE SourceID = '$PassedSource' ORDER BY ObjectKey DESC");