How to insert values in table with foreign key using MySQL?

Question

I have these two tables just for example:

TAB_TEACHER
- id_teacher   // primary key, autoincrement
- name_teacher // a varchar

TAB_STUDENT
- id_student    // primary key, autoincrement
- name_student  // a varchar
- id_teacher_fk // foreign key reference to a teacher (TAB_TEACHER)

I want to know how to insert in these two cases:

CASE 1 - INSERT a new Student with an pre-existing TEACHER, so I have to get the foreign key with a teacher name

CASE 2 - INSERT a new Student with a new TEACHER (the teacher I'm creating in the same time I'm creating the student)

Answer 1

http://dev.mysql.com/doc/refman/5.0/en/insert-select.html

For case1:

INSERT INTO TAB_STUDENT(name_student, id_teacher_fk)
SELECT 'Joe The Student', id_teacher
  FROM TAB_TEACHER
 WHERE name_teacher = 'Professor Jack'
 LIMIT 1

For case2 you just have to do 2 separate insert statements