generate some SQL queries to find some analysis of a Ecom store using a dataset. 

  
  

1. How many customers purchased products each month on average? 

2. What is the best-selling product in each Country? (Hints: use Quantity as the indicator for best- selling measure)

City State Country Region Market Product ID Category Sub Category Product Name Sales Quantity Discount Profit Shipping Cost Order_Priority Delivery Days STRING STRING STRING STRING STRING STRING STRING STRING STRING INTEGER INTEGER FLOAT INTEGER INTEGER STRING INTEGER NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE NULLABLE