![Solaris](../../com.ibm.commerce.base.doc/images/ngsolaris.gif)
![AIX](../../com.ibm.commerce.base.doc/images/ngaix.gif)
![Windows](../../com.ibm.commerce.base.doc/images/ngwin.gif)
![Oracle](../../com.ibm.commerce.base.doc/images/ngoracle.gif)
Troubleshooting: Error message in the database tier migration log
Oracle Database migration fails; unable to resolve service name.
Problem
During database tier migration, you receive the following error message in the database tier migration log:
ORA-12154: TNS:could not resolve service name
Solution
Ensure that you have created the service name for your Oracle database before migration.