Thanks. I've got one more problem. I instaled 11.2g and when I try loggin SQL*Plus return message:"TNS:protocol adapter error ". I do according to that: start the listener ( cmd : lsnrctl start) mount your database instance (on cmd : c:>sqlplus/nolog ,then sqlplus>startup open orcl.1.242.245)
And still I have got error. Maybe name of database is wrong. Where can I check it?
OK.I solve the problem and create semantic in Oracle 11g database. Thanks a lot for help for everyone*