alter system set processes = 150 scope = spfile;
alter system set sessions = 300 scope = spfile;
alter system set transactions = 330 scope = spfile;
http://www.fatlemon.co.uk/2009/06/increasing-processes-sessions-and-transactions-in-oracle-xe/
alter system set processes = 150 scope = spfile;
alter system set sessions = 300 scope = spfile;
alter system set transactions = 330 scope = spfile;