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use prac1810
create table products
(
id int Not Null Primary Key,
merchant_id int Not Null,
[name] varchar (30),
price int,
[status] varchar (10),
created_at varchar (30)
)
create table order_items
(
order_id int Not Null Primary Key,
product_id int Not Null,
quantity int
)
create table orders
(
id int Not Null Primary Key,
[user_id] int Not Null,
[status] varchar (10),
created_at varchar (30)
)
create table countries
(
code int Not Null Primary Key,
[name] varchar (30),
continent_name varchar (30)
)
create table merchants
(
id int Not Null Primary Key,
merchant_name varchar(30),
admin_id int Not Null,
country_code int Not Null,
created_at varchar (30)
)
create table users
(
id int Not Null Primary Key,
full_name varchar(30),
email varchar(30),
gender varchar(10),
date_of_birth varchar(30),
country_code int Not Null,
created_at varchar (30)
)
insert into products
values(1,2,'Chocolate',150,'Available','17/10/2022'),
(2,3,'Cold drink',15,'NA','10/10/2010'),
(3,1,'Coffee',10,'Available','15/10/2022')
insert into order_items
values(1,1,10),
(2,3,20),
(3,2,50)
insert into orders
values(1,3,'Available','14/02/1997'),
(2,2,'NA','15/08/2009'),
(3,1,'NA','17/12/2010')
insert into countries
values(356,'India','Asia'),
(764,'Thailand','Asia'),
(124,'Canada','North America')
insert into merchants
values(1,'Milton',2,764,'15/08/2009'),
(2,'Ethan',1,356,'15/08/2010'),
(3,'Kaleb',3,124,'19/08/2009')
insert into users
values(1,'Apurva Awasthi','[email protected]','Female','15/08/1985',764,'19/05/2020'),
(2,'Mohd Shadab','[email protected]','Male','10/09/1988',356,'17/10/2015'),
(3,'Esther Lall','[email protected]','Female','23/01/1967',124,'05/08/2001')
alter table order_items
add constraint order_id_FK FOREIGN KEY (order_id) references orders(id),
constraint prod_id_FK FOREIGN KEY (product_id) references products(id)
alter table orders
add constraint user_id_FK FOREIGN KEY ([user_id]) references users(id)
alter table merchants
add constraint admin_id_FK FOREIGN KEY (admin_id) references users(id),
constraint country_mcode_FK FOREIGN KEY (country_code) references countries(code)
alter table users
add constraint country_code_FK FOREIGN KEY (country_code) references countries(code)
alter table products
add constraint merchant_id_FK FOREIGN KEY (merchant_id) references merchants(id)
select * from products
select * from order_items
select * from orders
select * from countries
select * from merchants
select * from users
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