After install oracle 10g personal edition on windows XP home edition, the enterprise manager database control didn't work. I log in as super user SYSTEM, but EM database control always show error "the account is locked" and I can only startup/shutdown database, no other functions available.

While I'm waiting for my new PC on windows XP professional edition, I try to get some ddl from the example schema. How can I list all the table names and ddl for entire database using sqlplus ????

Thanks in advance.