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			| Oracle 12c Uppercase Username  [message #640] | Tue, 01 October 2019 21:14  |  
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					|  JimLo Messages: 1
 Registered: October 2019
 Location: PA USA
 | Junior Member |  |  |  
	| Today i downloaded Datawarrior 5.0.0 and tried to connect to an oracle 12.2 database.   Initially I got a ORA-28040: No matching authentication protocol error.  Google suggested either an oracle server change to Sqlnet.ora adding SQLNET.ALLOWED_LOGON_VERSION_SERVER=8, or updating the ojdbcX.jar file on the client. Since I have DBA access to the server I did the former and the error disappeared. It was then replaced by a ORA-1017 Invalid Username or Password error. probably caused by my username and password being upper case (Oracle became case-sensitive after v11).  This is probably a bug.   The only workaround I found was to create a new oracle user with lower case name and password and grant it permissions on the tables of interest.
 
 JimLo
 Arxspan
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			| Re: Oracle 12c Uppercase Username  [message #699 is a reply to message #640] | Mon, 28 October 2019 22:51  |  
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					|  thomas Messages: 736
 Registered: June 2014
 | Senior Member |  |  |  
	| sorry for the delay. I am not sure, whether I understand correctly: Do you say that when typing user-ID and password containing capital letters into the DataWarrior dialog, that the Oracle database sees lower case letters only, when the login request arrives? If this is the case, then I suspect the JDBC driver to be the culprit. 
 Thomas
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