Max Quantity
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Given the transactions table, write a query to get the max quantity purchased for each distinct product_id, every year.
The output should include the year, product_id, and max_quantity for that product sorted by year and product_id ascending.
Example:
Input:
transactions table
| Column | Type |
|---|---|
id |
INTEGER |
user_id |
INTEGER |
created_at |
DATETIME |
product_id |
INTEGER |
quantity |
INTEGER |
Output:
| Column | Type |
|---|---|
year |
INTEGER |
product_id |
INTEGER |
max_quantity |
INTEGER |
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