Business scene:
- One last time now ?? purchase from each purchase time interval?
- How WoW computing?
- How to get top N regional sales ranking Product List?
- How to get the total sales for each product category percentage of sales?
- How to calculate a cumulative merchandise sales accounted for?
- How to sell into N equal parts
- The proportion of orders greater than equal to the current order amount is how much?
- Each member within a certain period of time maximum, minimum order amount?