在安装数据库的时候已经创建了数据库实例了,下面的就是tnsnames.ora文件中的代码。
<alias>= [ (DESCRIPTION_LIST = # Optional depending on whether u have
# one or more descriptions
# If there is just one description, unnecessary ]
(DESCRIPTION=
[ (SDU=2048) ] # Optional, defaults to 2048
# Can take values between 512 and 32K
[ (ADDRESS_LIST= # Optional depending on whether u have
# one or more addresses
# If there is just one address, unnecessary ]
(ADDRESS=
[ (COMMUNITY=<community_name>) ]
(PROTOCOL=tcp)
(HOST=<hostname>)
(PORT=<portnumber (1521 is a standard port used)>)
)
[ (ADDRESS=
(PROTOCOL=ipc)
(KEY=<ipckey (PNPKEY is a standard key used)>)
)
]
[ (ADDRESS=
[ (COMMUNITY=<community_name>) ]
(PROTOCOL=decnet)
(NODE=<nodename>)
(OBJECT=<objectname>)
)
]
... # More addresses
[ ) ] # Optional depending on whether ADDRESS_LIST is used or not
[ (CONNECT_DATA=
(SID=<oracle_sid>)
[ (GLOBAL_NAME=<global_database_name>) ]
)
]
[ (SOURCE_ROUTE=yes) ]
)
(DESCRIPTION=
[ (SDU=2048) ] # Optional, defaults to 2048
# Can take values between 512 and 32K
[ (ADDRESS_LIST= ] # Optional depending on whether u have more
# than one address or not
# If there is just one address, unnecessary
(ADDRESS
[ (COMMUNITY=<community_name>) ]
(PROTOCOL=tcp)
(HOST=<hostname>)
(PORT=<portnumber (1521 is a standard port used)>)
)
[ (ADDRESS=
(PROTOCOL=ipc)
(KEY=<ipckey (PNPKEY is a standard key used)>)
)
]
... # More addresses
[ ) ] # Optional depending on whether ADDRESS_LIST
# is being used
[ (CONNECT_DATA=
(SID=<oracle_sid>)
[ (GLOBAL_NAME=<global_database_name>) ]
)
]
[ (SOURCE_ROUTE=yes) ]
)
[ (CONNECT_DATA=
(SID=<oracle_sid>)
[ (GLOBAL_NAME=<global_database_name>) ]
)
]
... # More descriptions
[ ) ] # Optional depending on whether DESCRIPTION_LIST is used or not