tnsnames.ora監聽配置檔案詳解

監聽配置檔案
             為了使得外部程式 如 CAMS後臺程式 能夠訪問 Oracle 資料庫 必須配
             置 Oracle 網路伺服器環境 配置 Oracle 網路伺服器環境是透過配置
             listener.ora sqlnet.ora 和 tnsnames.ora 共三個檔案來進行的 listener.ora
             即監聽配置檔案 在本小節說明 另兩個檔案分別在隨後的兩個小節說明
             監聽配置檔案 listener.ora 的存放路徑為 $ORACLE_HOME/network/admin
             以下是一個示例
             LISTENER =                          #監聽器名稱
                (DESCRIPTION_LIST =
               (DESCRIPTION =
                  (ADDRESS_LIST =
                      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
                  )
                  (ADDRESS_LIST =
                      (ADDRESS =
             (PROTOCOL = TCP)
             (HOST = localhost.localdomain)
             (PORT = 1521))
                  )
               )
               (DESCRIPTION =
                  (PROTOCOL_STACK =
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