> my $emps = $dbh->fetch_rowarray( "Insert into...." );
There are at least five major errors in that short snippet. Use $dbh->do("INSERT INTO ...");
The best way to get DBI to produce errors is to set $dbh->{RaiseError} = 1 in your connection. Then any errors will cause your program to die with error messages. If you want to see the messages in a browser, you'll need to use something along the lines of Carp qw(fatalsToBrowser).
update The errors: 1) The method name is fetchrow_array, not fetch_rowarray 2) It is a statement handle method, not a database handle method 3) It is for fetching data from SELECT statements, not for INSERT 4) it doesn't accept SQL as a parameter. 5) It returns an array (go figure), not a scalar.