I would get some samples on how to make the following :
1. I have product table where price for the same product can be different even during one day
2. I need to get report giving me average price for each product grouped by product and time frame in items 3 and 4
3. I have to get it using first Biweekly [excluding days when this price was null]
4. and Bimonthly [excluding days when this price was null]
Table has multiple rows for the same product just a reminder.
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