ORA-12560 Error when Connecting to SQLPLUS as ROOT
Last updated on JANUARY 31, 2018
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Information in this document applies to any platform.
***Checked for relevance on 11-Jan-2016***
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
ORA-12560: TNS:proto adapter error
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