title: ORA-12560 : TNS:protocol adapter error
body: <p>Im trying to log to ORACLE with comand  SqlPlus / as sysdba but I receive an error ORA-12560 : TNS:protocol adapter error. I read everything but i can't fixed it. It is strange because before I was able to connect. I search for OracleServiceORCL but instead I found OracleServiceXE in Services.msc. Can someone help mi to fix the problem@</p>