在 Sql Developer 中创建新数据库连接时出错

Question

创建新数据库时出现以下错误

我的用户名/我的密码， 主机名 - 本地主机， 端口 - 1521， SID - XE

状态：失败 - 测试失败：侦听器拒绝与 以下错误：ORA-12505，TNS:listener 目前不知道 连接描述符中给定的 SID

Answer 1

试试这个。来源docs.oracle

ORA-12505: TNS:listener does not currently know of SID given in connect descriptor
 Cause: 
The listener received a request to establish a connection to a database or other service. The connect descriptor received by the listener specified a SID for an instance (usually a database instance) that either has not yet dynamically registered with the listener or has not been statically configured for the listener. This may be a temporary condition such as after the listener has started, but before the database instance has registered with the listener.
Action: 
- Wait a moment and try to connect a second time.

- Check which instances are currently known by the listener by executing: lsnrctl services <listener name>

- Check that the SID parameter in the connect descriptor specifies an instance known by the listener.

- Check for an event in the listener.log file.