1. I have 3 computer. On each of them is oracle server 9i Rel 2. I would like create distributed database system. What I should doing ?

2. If I have defined public database link (TNS:LINKDB) in my database (TNS:MYDB) on other database, can use other user, loged on MYDB, tables in LINKDB ? And if yes, how ? I don't know if you understand.