Select data from date range between two dates

I have a table Named Product_Sales and it holds data like this

Product_ID | Sold_by | Qty | From_date  | To_date
-----------+---------+-----+------------+-----------
3          | 12      | 7   | 2013-01-05 | 2013-01-07
6          | 22      | 14  | 2013-01-06 | 2013-01-10
8          | 11      | 9   | 2013-02-05 | 2013-02-11

Now what is the query if I want to select sales data between two dates from a date range?

For example, I want to select sales data from 2013-01-03 to 2013-01-09.

As you can see, there are two ways to get things done:

• enlist all acceptable options
• exclude all wrong options

Obviously, second way is much more simple (only two cases against four).

Your SQL will look like:

SELECT * FROM Product_sales 
WHERE NOT (From_date > @RangeTill OR To_date < @RangeFrom)

SELECT * from Product_sales where
(From_date BETWEEN '2013-01-03'AND '2013-01-09') OR 
(To_date BETWEEN '2013-01-03' AND '2013-01-09') OR 
(From_date <= '2013-01-03' AND To_date >= '2013-01-09')

You have to cover all possibilities. From_Date or To_Date could be between your date range or the record dates could cover the whole range.

If one of From_date or To_date is between the dates, or From_date is less than start date and To_date is greater than the end date; then this row should be returned.

Try following query to get dates between the range:

SELECT  *
FROM    Product_sales 
WHERE   From_date >= '2013-01-03' AND
        To_date   <= '2013-01-09'

SELECT * FROM Product_sales 
WHERE From_date between '2013-01-03'
AND '2013-01-09'