Executive report
Eve wants to produce a final executive report about the rankings of eateries by the number of unique users who order from them by quarter. She said she'll handle the pivoting, so you only need to prepare the source table for her to pivot.
Send Eve a table of unique ordering users by eatery and by quarter.
Este exercício faz parte do curso
Analyzing Business Data in SQL
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
SELECT
eatery,
-- Format the order date so "2018-06-01" becomes "Q2 2018"
TO_CHAR(order_date, ___) AS delivr_quarter,
-- Count unique users
___ AS users
FROM meals
JOIN orders ON meals.meal_id = orders.meal_id
GROUP BY eatery, delivr_quarter
ORDER BY delivr_quarter, users;