my $dbConnectString = '(LOAD_BALANCE=on)'|| 
                      '(ADDRESS=(PROTOCOL=TCP)(HOST=myhost1)(PORT=1521))'||
                      '(ADDRESS=(PROTOCOL=TCP)(HOST=myhost2)(PORT=1521))'||
                      '(CONNECT_DATA=(SERVICE_NAME=pcipJDBC.oracle.com))';
print "dbConnectString=$dbConnectString\n";

__END__
dbConnectString=(LOAD_BALANCE=on)