ORA-12504:TNS:監聽程序在CONNECT_DATA中未獲得SERVICE_NAME


客戶端配置好服務名后,用PL/SQL Developer連接數據庫時,報錯:ORA-12504:TNS:監聽程序在CONNECT_DATA中未獲得SERVICE_NAME。一般這種情況請檢查tnsnames.ora文件中TNS是否配置正確,如下所示,SERVICE_NAME 名字弄錯了,結果報如上錯誤:

GSP =
  (DESCRIPTION =
    (ADDRESS =(PROTOCOL = TCP)(HOST = 172.20.36.79)(PORT = 1521))
    (CONNECT_DATA=
      (SERVER = DEDICATED)
      (SERVER_NAME = gsp)
    )
  )
修改為
GSP =
  (DESCRIPTION =
    (ADDRESS =(PROTOCOL = TCP)(HOST = 172.20.36.79)(PORT = 1521))
    (CONNECT_DATA=
      (SERVER = DEDICATED)
      (SERVICE_NAME = gsp)
    )
  )


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