plsql连接oracle出现ORA-12154: TNS: 无法解析指定的连接标识符

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/silenceray/article/details/78247023

plsql连接oracle出现ORA-12154: TNS: 无法解析指定的连接标识符问题
 plsql配置文件tnsnames.ora中的原配置文件中的内容为
 orcl
   (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.13.89)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = wmprod)
    )
  )
 后经查询发现我的oracle中的SERVICE_NAME和sid不一样
 SQL> show parameter db_name

NAME				     TYPE	 VALUE
------------------------------------ ----------- ------------------------------
db_name 			     string	 orcl
SQL> show parameter instance_name

NAME				     TYPE	 VALUE
------------------------------------ ----------- ------------------------------
instance_name			     string	 wmprod

把tnsnames.ora中的配置文件修改后可以正常连接
 orcl
   (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.13.89)(PORT = 1521))
    )
    (CONNECT_DATA =(SID = wmprod)
    )
  )