8 Replies Latest reply: Nov 13, 2011 6:21 PM by Sunthar Tharmalingam RSS

    Error Message :- ORA-12203 TNS : Unable to connect to destination

    Mohan Kumar

      I am trying to install Oracle 8i and oracle Forms and reports on my personal system for prectise purpose,

      I have window XP on my system and I installed Oracle Forms & Reports first on my system in C: drive,
      then I installed Oracle 8i(sql, pl/sql) in D: drive on my system, both installed successfully
      but whenever I am trying to connect oracle(sql)
      with scott/tiger then it is showing below error message and unable to connect with oracle(sql)

      ORA-12203 TNS : Unable to connect to destination.

      Please suggest how can I solve that problem.