I'm studying SQL at the moment and got this exercise:
create table customer
(
id int auto_increment,
name varchar(255) null,
state varchar(2) null,
constraint customer_pk
primary key (id)
);
insert into customer(name, state) values ('Joao', 'SP');
insert into customer(name, state) values ('Andre', 'SP');
insert into customer(name, state) values ('Janaina', 'SP');
insert into customer(name, state) values ('Gabriela', 'SC');
insert into customer(name, state) values ('Fernanda', 'MG');
insert into customer(name, state) values ('Daniel', 'RJ');
insert into customer(name, state) values ('Pedro', 'RJ');
create table `sales_order`
(
id int auto_increment,
order_number varchar(255) null,
customer_id int null,
constraint order_pk
primary key (id)
);
insert into sales_order(order_number, customer_id) values ('4001212', 1);
insert into sales_order(order_number, customer_id) values ('5001212', 1);
insert into sales_order(order_number, customer_id) values ('6001212', 1);
insert into sales_order(order_number, customer_id) values ('7001212', 2);
insert into sales_order(order_number, customer_id) values ('8001212', 2);
insert into sales_order(order_number, customer_id) values ('8001212', 3);
insert into sales_order(order_number, customer_id) values ('9001212', 4);
insert into sales_order(order_number, customer_id) values ('1001212', 7);
create table sales_order_item
(
id int auto_increment,
sales_order_id int null,
sku varchar(255) null,
cost float null,
constraint order_item_pk
primary key (id)
);
insert into sales_order_item(sales_order_id, sku, cost) values(1, 'MOB100K456', 100.0);
insert into sales_order_item(sales_order_id, sku, cost) values(1, 'MOB200K456', 200.0);
insert into sales_order_item(sales_order_id, sku, cost) values(1, 'MOB300K456', 300.0);
insert into sales_order_item(sales_order_id, sku, cost) values(2, 'MOB400K456', 400.0);
insert into sales_order_item(sales_order_id, sku, cost) values(3, 'MOB450K456', 450.0);
insert into sales_order_item(sales_order_id, sku, cost) values(4, 'MOB600K456', 600.0);
insert into sales_order_item(sales_order_id, sku, cost) values(5, 'MOB600K456', 600.0);
insert into sales_order_item(sales_order_id, sku, cost) values(5, 'MOB650K456', 650.0);
insert into sales_order_item(sales_order_id, sku, cost) values(6, 'MOB610K456', 610.0);
insert into sales_order_item(sales_order_id, sku, cost) values(6, 'MOB620K456', 620.0);
insert into sales_order_item(sales_order_id, sku, cost) values(6, 'MOB630K456', 630.0);
insert into sales_order_item(sales_order_id, sku, cost) values(6, 'MOB640K456', 640.0);
insert into sales_order_item(sales_order_id, sku, cost) values(7, 'MOB600K456', 600.0);
insert into sales_order_item(sales_order_id, sku, cost) values(8, 'MOB600K456', 600.0);
Now I need to run a SELECT
statement that returns name
, order_number
, sku
and value
.
Is it possible to get the data only with 1 statement?
Could you help me understand this? I feel like this is a silly question but will help me a lot.
Thanks in advance