1 Reply Latest reply on Jul 18, 2016 4:31 PM by rp0428

    SQL DEVELOPER Connection issue

    214538c7-4110-47a6-a836-7098d97ff513

      Hi,

       

      can anyone help me resolving this error while connecting to the SQL developer?

      I tried so many things still this error occurs.

       

      Status : Failure -Test failed: IO Error: The Network Adapter could not establish the connection

      m using following details:

      HOST:localhost

      port:1521

      SID:XE

      user:sys

      password:system

       

       

      I have seen in services.msc the OracleServiceXE SID is running.

      Any help would be really appreciated.

        • 1. Re: SQL DEVELOPER Connection issue

          can anyone help me resolving this error while connecting to the SQL developer?

          I tried so many things still this error occurs.

           

          Status : Failure -Test failed: IO Error: The Network Adapter could not establish the connection

          m using following details:

          HOST:localhost

          port:1521

          SID:XE

          user:sys

          password:system

          The exception means there is no such database at localhost port 1521

           

          Oracle 12c REQUIRES the use of SERVICE_NAME and not SID.