Messages

I have received the following message when i connect Developer 10G report builder with oracle database.

scott/tiger@z

REP-0501:Unable to connect to the specified database ORA-12154:TNS could not resolve service name.

I have written the following text in tnsnames.ora file.


# TNSNAMES.ORA Network Configuration File: E:\ora_10g\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

z =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = zkhan-dfml)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SID = dba)
    )
  )

One more thing that i need to mention,I have also installed Oracle Report 6i and its connecting well.I have installed Oracle database in my own computer.

Regards