4. The method as claimed in claim 2, further comprising the step of parsing said inner and outer query to form a linked data structure including a first node representing said inner query and a second node representing said outer query.
4. The method as claimed in claim 2, further comprising the step of parsing said inner and outer query to form a linked data structure including a first node representing said inner query and a second node representing said outer query. 5. The method as claimed in claim 4, wherein said steps of converting generate another linked data structure including a third node defining said first un-nested query and a fourth node defining said second un-nested query.