ORA-12560 Error when Connecting to SQLPLUS as ROOT
(Doc ID 339509.1)
Last updated on JANUARY 30, 2022
Applies to:
Oracle Database - Enterprise Edition - Version 9.2.0.1 and laterOracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
As root user id when trying to connect to a database using bequeath protocol, get TNS-12560 protocol adapter error. This error is received even though connecting as a regular user and not as sysdba. Other users are not experiencing the error.
ORACLE_SID, ORACLE_HOME are all set properly
Cannot connect locally
sqlplus <username>/<password>
ORA-12560: TNS:proto adapter error
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |