You will find many people using the operator, but I prefer to use the simple operator I.
I do this because although between the IS operator is included, simple dates (2012-04-10) can be considered midnight and therefore will not include.
So this should work fine and will always include date range bounds:
Statement
SELECT * FROM table WHERE from_date >= '2012-04-10' AND to_date <= '2012-04-10'
Bill
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