mysql JOIN, how is this interpreted?

Question

If I write a sql query for mysql and I just specify JOIN (no outer, inner, left, etc), what type of join does this default to?

For example:

SELECT count(*) FROM Students p JOIN Classes c ON p.studentId = c.studentId

Answer 1

Most commonly, INNER JOIN is regarded as the default.

Answer 2

JOIN defaults to INNER JOIN

Answer 3

According to the MySQL manual, the word inner (or cross) is optional, indicating that the default is an inner join.