1757 Recyclable and Low Fat Products.md

1757. Recyclable and Low Fat Products

https://leetcode-cn.com/problems/recyclable-and-low-fat-products/

Create table If Not Exists Products (product_id int, low_fats ENUM('Y', 'N'), recyclable ENUM('Y','N'))
Truncate table Products
insert into Products (product_id, low_fats, recyclable) values ('0', 'Y', 'N')
insert into Products (product_id, low_fats, recyclable) values ('1', 'Y', 'Y')
insert into Products (product_id, low_fats, recyclable) values ('2', 'N', 'Y')
insert into Products (product_id, low_fats, recyclable) values ('3', 'Y', 'Y')
insert into Products (product_id, low_fats, recyclable) values ('4', 'N', 'N')

Table: Products

Column Name	Type
product_id	int
low_fats	enum
recyclable	enum

product_id is the primary key for this table.
low_fats is an ENUM of type ('Y', 'N') where 'Y' means this product is low fat and 'N' means it is not.
recyclable is an ENUM of types ('Y', 'N') where 'Y' means this product is recyclable and 'N' means it is not.

Write an SQL query to find the ids of products that are both low fat and recyclable.
Return the result table in any order.
The query result format is in the following example.

Example 1: Input: Products table:

product_id	low_fats	recyclable
0	Y	N
1	Y	Y
2	N	Y
3	Y	Y
4	N	N

Output:

product_id
1
3

Explanation: Only products 1 and 3 are both low fat and recyclable.

solution

# Write your MySQL query statement below
SELECT product_id FROM Products WHERE low_fats = 'Y' AND recyclable = 'Y';