關於mysql查詢關於MYSQL 查詢

你想要的是這種效果嗎？

--建立表city_cost

create table city_cost(id int primary key auto_increment, cost_time date, city varchar(20), money int) auto_increment = 1;

--插入資料

insert into city_cost(cost_time, city, money) values (str_to_date('2018-08-06', '%y-%m-%d'), '武漢', 260);

insert into city_cost(cost_time, city, money) values (str_to_date('2018-08-07', '%y-%m-%d'), '武漢', 400);

insert into city_cost(cost_time, city, money) values (str_to_date('2018-08-08', '%y-%m-%d'), '武漢', 190);

insert into city_cost(cost_time, city, money) values (str_to_date('2018-08-04', '%y-%m-%d'), '南京', 310);

insert into city_cost(cost_time, city, money) values (str_to_date('2018-08-05', '%y-%m-%d'), '南京', 450);

insert into city_cost(cost_time, city, money) values (str_to_date('2018-08-07', '%y-%m-%d'), '南京', 700);

insert into city_cost(cost_time, city, money) values (str_to_date('2018-08-10', '%y-%m-%d'), '北京', 1000);

--查詢表city_cost

--建立檢視v_city_cost

create view v_city_cost(日期, 城市, 消費) as select cost_time, city, money from city_cost;

--查詢檢視v_city_cost

select * from v_city_cost order by 日期 asc;

關於mysql查詢 關於MYSQL 查詢