dear sir
see my version Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production my oracle 12c and form 6i run fine in same machine by host = localhost
see
C:\orant\net80\admin =-------
[code]
orcl =
(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521)))
(CONNECT_DATA = (SERVICE_NAME = pdborcl) ))
PDBORCL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = pdborcl) ) )
Rep60_MFAMDA-PC,Rep60_MFAMDA-PC.world=(ADDRESS=(PROTOCOL=tcp)(HOST=MFAMDA-PC)(PORT=1949))
[/code]
i give in user computer host name my computer name mfamda-pc but is not run and give me error ora-12224 regard