find last time sql executed

Is there any way to find when was the last time sql executed and what was the time taken by it.
When tracing or auditing is not on.
Actually problem is one of developer is executed delete query on a table,
now I want to when was that query executed last time. Because same query with different
literal was executed by other developer before it. As well as what was the time taken by
that delete query.

ORACLE : 9.2.0.3
Platform : Any Platform Received on Thu May 17 2007 - 06:16:29 CDT