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- ORA-12518, TNS:listener could not hand off client connection
tnsping worked properly but sqlplus failed with the ora-12518 listener error I had the tnsnames ora entry with a SID instead of a service_name, then once I fixed that, still the same error and found I had the wrong service_name as well
- Linux: ORA-12518: TNS:listener Could Not Hand Off Client . . .
When attempting to connect to database via listener, the following error occurs ERROR-----ERROR: ORA-12518: TNS:listener could not hand off client connection
- Oracle intermittently throws ORA-12516, TNS:listener could . . .
When the listener believes the current number of connections has reached maximum load, it may set the state of the service handler for an instance to "blocked" and begin refusing incoming client connections with either of the following errors: ora-12519 or ora-1251"
- ORA-12518: TNS:listener could not hand off client connection
ORA-12518: TNS:listener could not hand off client connection Cause: The process of handing off a client connection to another process failed Action: Turn on listener tracing and re-execute the operation
- ORA-12518, TNS:listener could not hand off client connection
Hi, I am first using the Oracle database and the first time that I'm going to connect with the database, I've encountered this problem: An error was encountered performing the requested oper
- ORA-12518, TNS:listener could not hand off client connection
After some research, I stumbled upon a post detailing Oracle Net Services versions 9 2 0 5 to 10 2 0 1, notorious for ORA-12518 errors Consequently, I eliminated all 19c references from the 11g listener services and established a new 19c listener service That turned out to be the solution
- ORA-12505, TNS:listener does not currently know of SID given . . .
The error ORA-12505 means that the listener was up and you could connect to it, but it couldn't connect you to the database because it doesn't know that that database is up There are two reasons for this:
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