在ORACLE中,如果要訪問某個服務器,必須要設置TNS。
ORCAL是不會自動列舉出網內的服務器的,需要通過讀取TNS配置文件才能列出經過配置的服務器名。
ORACLE的TNS配置文件名爲tnsnames.ora
文件所在路徑如下:
E:\MyOracle\Oracle\app\oracle\product\11.2.0\server\network\ADMIN
我的ORACLE安裝在e盤下的MyOracle目錄下!
下面是一個配置實例:
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = hai)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)