SYMPTOM:
When Oracle 11g is using "AL32UTF8" for the Character set with Japanese Character in Windows, the History list messages are garbled as below:

CAUSE:
This issue happens when "UTF-8" is set for the "Character set encoding for Windows drivers" in the database connections of Strategy.
ACTION:
The setting is the DB Connection property for the Driver Character Set, it is not database side. Intelligence Server is on Windows so by default on Windows most ODBC drivers use UCS-2 code page for Unicode data. In this situation, we generally set this to "Non UTF-8".
Edit the Database Instance -> Modify the Database coonection -> Advanced tab -> configure the setting as below:

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