Oracle Quick Check 

Oracle Quick Check will evaluate a large number of critical values and report back with a set of tuning recommendations. To help supplement the analysis, a report of your database is automatically emailed to dba@ensyncsolutions.com.
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Oracle SafetyNet 

A free program that will allow small and medium shops running Oracle on Windows based servers to automate the regualr backup and export of data from their databases, enabling them to recover from problems with the database.
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