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IF: Troubleshooting ORA-12560 Errors Reported during Bequeath Connection on Windows Platform. (Doc ID 2016580.1)

Last updated on OCTOBER 19, 2022

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Microsoft Windows x64 (64-bit) - Version: 2008 R2
Microsoft Windows x64 (64-bit) - OS Version: 7


While trying to make a Bequeath (or local) connection, ORA-12560 Occurred in Windows platform:

 Enter user-name: sys as sysdba
Enter password:
ORA-12560: TNS:protocol adapter error


Troubleshooting Steps

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In this Document
Troubleshooting Steps
 1) Make sure that the OracleSerivce for this Database is started:
 2) Check the Environment Variables:
 3) Recreate the OracleService<SID>:
 4- Other known issues:

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