Intermediate · 25 min · 4 steps

Splitting shoppers into four equal groups by how much they spend

Ananya Sen, Growth Data Engineer at ShopKart Retail

It is Tuesday, 9:00 AM. Ananya Sen is a data analyst at ShopKart, an online shop for fashion and electronics with over 8 million registered shoppers in India. She is in the weekly marketing meeting. The Vice President of Growth says there is a Rs 1.5 crore budget to bring shoppers back for the Diwali sale. But earlier mass emails with the same offer got only a 1.4% click rate.

The question

How do we split customers into four equal groups by spending, and pick out the top group of VIP shoppers?

  • NTILE
  • Window functions
  • Customer segmentation
  • CTEs

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