# 1084. 销售分析III
# https://leetcode-cn.com/problems/sales-analysis-iii/

# SQL架构
Create table If Not Exists Product (product_id int, product_name varchar(10), unit_price int);
Create table If Not Exists Sales (seller_id int, product_id int, buyer_id int, sale_date date, quantity int, price int);
Truncate table Product;
insert into Product (product_id, product_name, unit_price) values ('1', 'S8', '1000');
insert into Product (product_id, product_name, unit_price) values ('2', 'G4', '800');
insert into Product (product_id, product_name, unit_price) values ('3', 'iPhone', '1400');
Truncate table Sales;
insert into Sales (seller_id, product_id, buyer_id, sale_date, quantity, price) values ('1', '1', '1', '2019-01-21', '2', '2000');
insert into Sales (seller_id, product_id, buyer_id, sale_date, quantity, price) values ('1', '2', '2', '2019-02-17', '1', '800');
insert into Sales (seller_id, product_id, buyer_id, sale_date, quantity, price) values ('2', '2', '3', '2019-06-02', '1', '800');
insert into Sales (seller_id, product_id, buyer_id, sale_date, quantity, price) values ('3', '3', '4', '2019-05-13', '2', '2800');

# Write your MySQL query statement below
select
    distinct product_id,
    product_name
from
    Product
where
    product_id not in (
        select
            product_id
        from
            Sales
        where
            sale_date < '2019-01-01'
            or sale_date > '2019-03-31'
    );

# clean-up
drop table Product;
drop table Sales;