ORA-12514:TNS:listener does not currently know of service requested in connect descriptor

navicat connect oracle database failure

One reason, the problem

Navicat connect oracle database service name that is not correct (default ORCL)
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error means the address can not find the database you want to request.

I started to fill out login information:
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View database service name or SID: The
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discovery service name has changed, not the default ORCL, then the service name can be changed.

Second, to solve the problem

1, see the database service name or SID:

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2, change the service's logon name

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Origin blog.csdn.net/weixin_44624117/article/details/104842620