Hi SF Community!

I'm looking to create a SOSL or SOQL query in Workbench based on the following:

- I have 3 custom objects that are related - Projects (parent), Tasks (child to projects), and timesheets (child to projects and tasks).
- I want to create a query that pulls all of the above records based on a project created date less than June 30, 2013, and a task created date or timesheet created date greater than June 30, 2013.

I'm not a developer, but have managed to create some very basic SOQL queries in workbench.  Not sure how to do this one though.  I'm using Workbench so I can export the results.

Thanks!
Nick