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FIX: ORA-12505 || ORA-12505: TNS:listener does not currently know of SID [solved] ✅ || 12505
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
Listener refused the connection with the following error: ORA-12505 solución (SQL Developer)
Status: Failure -Test failed: IO Error: The Network Adapter could not establish the connection
Connect SQL to Oracle | Listener does not know of SID given in connect descriptor | ORA 12505
Oracle Error(ORA- 12505)
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Last Updated: August 22, 2026
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![Oracle SQL Developer | Database not connecting SID issue [FIXED] 2022](https://i.ytimg.com/vi/O2QZX2YMf1Y/mqdefault.jpg)
![FIX: ORA-12505 || ORA-12505: TNS:listener does not currently know of SID [solved] ✅ || 12505](https://i.ytimg.com/vi/vGJKs9bljrs/mqdefault.jpg)
