学ぶ ROUNDing | Aggregating

セクション 3. 章 4

single

メニューを表示するにはスワイプしてください

In the last chapter, you solved the task and received a number with many digits after the decimal place. This is surely precise, but not representative, as there is no way to pay 0.002$, for example. It would be great if we could round numbers to some digits.

Surely it's also implemented into SQL! To round number to n decimal places use ROUND(column_name, n) function. For example, from our audi_cars dataset let's calculate the average price of TT model cars with mileage less than 3000 and round the result to 0 decimals (so it will be an integer).


              123
            
SELECT ROUND(AVG(price), 0)
FROM audi_cars
WHERE model = 'TT' AND mileage < 3000

That's more representative!

タスク

スワイプしてコーディングを開始

From the audi_cars table calculate the average price for Petrol cars (column fueltype) with Semi-Auto transmission (column transmission). Round the result to 2 digits after the comma.

解答

実践的な練習のためにデスクトップに切り替える下記のオプションのいずれかを利用して、現在の場所から続行する

すべて明確でしたか？

フィードバックありがとうございます！

セクション 3. 章 4

single

AIに質問する

何でも質問するか、提案された質問の1つを試してチャットを始めてください