如何在MySQL数据库中添加单个用户的多个地址

Question

i need help. I want to have two tables in database. One is USER n othetis ADDRESS. I want to add multiple addresses for the user that is added in USER table. How can i do this ? Thank you.

Answer 1

1st : You can add user unique id in address table .

2nd : And also maintain auto_increment primary key in address table why means when your going to edit the address means you need to update the right one so it's useful in future so maintain one column for that .

Answer 2

You Have two different tables:

1) USER

2) ADDRESS

Give foreign key for ID of user table to address table

Example:

USER

id    name    email
1     abc     xxx@xxx.com

ADDRESS

id    user_id      address detail
1      1          address detail 1
2      1          address detail 2

Here user 1 has 2 address. You can add more address also

Answer 3

According to the my opinion its just simple. Its one to many relationship of two tables. you can set user id as a foreign key of address table and add addresses. user id is the primary key of user table.

Answer 4

The ADDRESS table should have a many-to-one relationship with the USER table and contain USER_ID as a foreign key. Simply create multiple ADDRESS records that all have the same USER_ID. To differentiate them you should add a field to specify the type of address such as home, business, etc.

USER
ID, NAME, ...

ADDRESS
ID, USER_ID, ADDRESS_TYPE, STREET, ...

You should also really create separate tables for ADDRESS_TYPE, CITY, COUNTRY, STATE, etc. to avoid unnecessarily duplicated data and the problems that occur when those fields are allowed to be just entered as text - eg Montreal, montreal, MONTREAL, mtl, Montréal are all valid ways people write the same city.

Answer 5

您只需要创建一个称为ADDRESS的表：

CREATE TABLE ADDRESS(id int not null,user_id int,address varchar(255),PRIMARY KEY (id),FOREIGN KEY (user_id) REFERENCES USER(user_id));