MySQL best approach for db normalising, relationships and foreign keys

Question

There is an username/password verification step first then the database has following structure

^ is primary key

* uses foreign key


1.StudentDetails table
===         


        

Answer 1

Ok let me explain you how it would be. I made an example with two tables that you can see below.

Then you can create your query.

mysql> show tables;
+----------------+
| Tables_in_test |
+----------------+
| addresses      |
| students       |
+----------------+
2 rows in set (0.00 sec)

mysql> select * from students;
+----+----------+-----------+
| id | name     | last_name |
+----+----------+-----------+
|  1 | jhon     | smith     |
|  2 | anderson | neo       |
|  3 | trinity  | jackson   |
+----+----------+-----------+
3 rows in set (0.00 sec)

mysql> select * from addresses;
+----+-----------------+---------+
| id | address         | student |
+----+-----------------+---------+
|  1 | Av 1 2nd Street |       1 |
|  2 | Av 3 4 Street   |       2 |
|  3 | St 23 7 Av      |       3 |
+----+-----------------+---------+
3 rows in set (0.00 sec)

mysql> select s.name,s.last_name,a.address from students s join addresses a on a.student=s.id;
+----------+-----------+-----------------+
| name     | last_name | address         |
+----------+-----------+-----------------+
| jhon     | smith     | Av 1 2nd Street |
| anderson | neo       | Av 3 4 Street   |
| trinity  | jackson   | St 23 7 Av      |
+----------+-----------+-----------------+
3 rows in set (0.00 sec)