ORA-12514 When Attempting to Connect As Sysdba
(Doc ID 340092.1)
Last updated on JANUARY 20, 2025
Applies to:
Oracle Net Services - Version 8.1.7.4 to 12.1.0.2 [Release 8.1.7 to 12.1]Oracle Cloud Infrastructure - Exadata Cloud Service - Version N/A and later
Gen 2 Exadata Cloud at Customer - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Database - Enterprise Edition - Version 10.2.0.5 and later
Information in this document applies to any platform.
This problem can occur on any platform.
All sysdba connections which omit the Net service names.
Symptoms
Attempting to connect locally or via bequeath using the following:
sqlplus "/ as sysdba"
This yields an error:
ORA-12514:TNS:listener does not currently know of service requested in connect descriptor
The database is running. This is a local or bequeath connection so we do not expect the listener is
handling this connection and yet it's throwing a listener error.
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |