在MySQL中創建視圖時，如何使用同一視圖中的其他列來計算列的結果？

Question

所以我們可以說，我們有一個表叫做Prices的列Price1和Price2，我想創建一個視圖叫Totals了一個名爲PriceTotals在表上增加了Price1和Price2列，並呼籲PriceCut第二列，簡單地劃分PriceTotals在視圖2上：

create view `Totals` as 
    select 
    `Price1` + `Price2` as `PriceTotals`, 
    /**Put column definition here that divides PriceTotals by 2**/ as `PriceCut`  
    from `Prices`; 

我該如何去做？

Answer 1

難道你不能這樣做嗎？

CREATE VIEW Totals AS 
    SELECT Price1 + Price2 AS PriceTotals, 
      (Price1 + Price2)/2 AS PriceCut 
     FROM Prices;