登陆Oracle SQL Developer
在登陆oracle自带的sql developer的时候，刚开始没有选择连接方式，采用的是默认的连接类型ldquo;Basicrdquo;，我填写了连接名
在登陆Oracle自带的sql developer的时候，，刚开始没有选择连接方式，采用的是默认的连接类型“Basic”，我填写了连接名，用户名，口令后连接，提示我错误。
Listener refused the connection with the following error:ORA-12505.....
解决方案：
选择连接类型为：“TNS”
网络别名中选择你的数据库：“ORCL”(安装默认的是这个)
然后就可以连接了。
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