Database connection error: Listener refused the connection with the following error: ORA-12505 solution - Code World

Database connection error: Listener refused the connection with the following error: ORA-12505 solution

Others 2020-10-28 05:55:51 views: null

When using SQL developer to connect to a user, an error like the question appears.

Solution:

1: Search for "services"

2: Start the service item selected in the figure below
Insert picture description here

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Origin blog.csdn.net/weixin_43655282/article/details/106207184

Database connection error: Listener refused the connection with the following error: ORA-12505 solution

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