ora-12514

oracle 的安装目录下面如C:\oracle\product\10.2.0\db_1\NETWORK\ADMIN中找到listner.ora文件添加粗体部分。

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (GLOBAL_DBANAME = testDB)
      (ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
      (SID_NAME = testDB)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    )
  )