Leetcode Problem 1173. Immediate Food Delivery I

1173. Immediate Food Delivery I

Leetcode Solutions

Calculating Immediate Order Percentage

Use the AVG() function with the boolean expression order_date = customer_pref_delivery_date to calculate the ratio of immediate orders to total orders.
Multiply the result by 100 to convert the ratio to a percentage.
Use the ROUND() function to round the result to two decimal places.
Alias the result as immediate_percentage using the AS keyword.
Select the rounded percentage from the Delivery table.

erDiagram
    Delivery {
        int delivery_id PK
        int customer_id
        date order_date
        date customer_pref_delivery_date
    }

Counting Immediate Orders and Total Orders

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