What if you want to retrieve all the data between two values, such as payments made between January 1 and March 31?

And what if you need to use many different values? Suppose you want sales figures for items in many different price ranges. With a parameter query, you can enter a new range of values each time you run the query, so it gets all the results you need.

In this lesson, you'll see how a parameter query returns lists of donors based on the dollar range of their contributions. This makes it easy to respond appropriately—with a coffee mug, for instance—to people who have donated between $100 and $499.

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