Create a query that returns the name and purchase amount of the five customers in each state who have spent the most money

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PostGreSql

 

Our database has 3 tables: transactions, products, and customers.

 

Create a query that returns the name of the most popular item in every state and the state.

 

Create a query that returns the name and purchase amount of the five customers in each state who have spent the most money.

 

Create a query that returns the five most popular items for users with a ‘Gmail’ email in the past 30 days, based on the number of sales

 

 

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