The way to increase a database is to edit the TNSNames.ora file, in the C: / Oracle / ORA81 / NETWORK / Admin directory.
Add information like the following
SVR236 =
(Description =
(Address_list =
(Address = (protocol = TCP) (Host = 172.16.236.236) (port = 1523))
)
(Connect_data =
(SID = WebDB)
)
)
