如何执行这个 mySQL 查询？

Question

I just need help with this mySQL question.

"Our products supplied at a higher price and it has been decided to pass this cost on to our customers. Increase the price by 3% on all products.

Write a query that returns a list of all products, their original price, and an additional column that contains the new (increased) prices."

Now i know how to increase the price by 3% however how am i supposed to do the second part?

Answer 1

尝试这个

SELECT Product, Price, Price * 1.03 as newprice From Tablename;

Answer 2

SELECT product_name, product_price, product_price * 1.03 as product_increased_price From products;

在上面的查询中，它实际执行的操作是通过将产品的旧价格乘以3％来获得产品的名称 (product_name) ， 产品的旧价格 (product_price)和产品的新价格 (product_increased_price) 。