最近設計一個事務處理，遇到一個Sql語句怎麼都寫不出啦，試了很多次才實現，因此在此記錄分享一下。

業務是這樣的：求書的表中的價格最高的那本書的詳細資訊；

表books中有三個欄位，isbn,book_name,price;

SELECT isbn AS isbn,book_name AS bookName,price AS bookPrice 
FROM books 
WHERE price =  (SELECT MAX(price) 
FROM books )

下面是簡單且有效的方式

SELECT isbn AS isbn,book_name AS bookName,price AS bookPrice 
FROM books 
WHERE price =  (SELECT MAX(price) 
FROM books )
LIMIT 1