Unable to connect to database after htmldb install

Let me clarify:
I am using 10g (10.2.0.1.0)
I just installed Application Server 10.1.3.0.0
I two database instances one being the original I created on initial install of 10g.
One additional database I wanted to use for the HTMLDB application.
I successfully installed and can connect to the application server on http://myserver:7777/em
And I can connect to the OEM for the database on http://myserver:5500/em.
When I tried to login via command prompt to install the HTMLDB tools I get the following error.
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
I have checked my tnsnames.ora, listen.or and sqlnet files. They all appear to be correct.
I can even login through the net manager.

You don't tell us the OS (what always is useful), but if it is Windows, a new installation changes the default ORACLE_HOME. Now Oracle searches in <NEW_ORACLE_HOME>\network\admin (in your case the new home is HTMLDB's home) for its net configuration files. You could copy the configuration files from the old location or set TNS_ADMIN to <OLD_ORACLE_HOME>\network\admin.
Werner

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are you using the Aliases for the SQL Server, make sure your account having the correct permission.
If it is your QA farm, you can run the config wizard to fix his problem...
check this post having the similar issue.
http://social.technet.microsoft.com/Forums/sharepoint/en-US/478d6b3a-a51e-48c5-832b-5afb51c69734/unable-to-connect-to-the-sql-content-database-from-sharepoint-web-front-server?forum=sharepointadminlegacy
http://hammad1.wordpress.com/2008/06/04/unable-to-connect-to-database-in-event-logs/
Please remember to mark your question as answered &Vote helpful,if this solves/helps your problem. ****************************************************************************************** Thanks -WS MCITP(SharePoint 2010, 2013) Blog: http://wscheema.com/blog

Unable to connect to database after htmldb install

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