
Docs:
    http://www.oracle.com/pls/db102/homepage

Excellent setup instructions:
    http://www.davidpashley.com/articles/oracle-install.html

Work around session limit (fixes ORA-12520):
    ALTER SYSTEM SET PROCESSES=150 SCOPE=SPFILE;
    ALTER SYSTEM SET SESSIONS=150 SCOPE=SPFILE;
    (then restart Oracle)

Manually rollback an in-dispute transaction:
    select local_tran_id, state from DBA_2PC_PENDING;
    rollback force '$local_tran_id';
