What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?

Question

What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?

In what cases should these be used?

Answer 1

Those seem to be MySQL data types.

According to the documentation they take:

1. tinyint = 1 byte
2. smallint = 2 bytes
3. mediumint = 3 bytes
4. int = 4 bytes
5. bigint = 8 bytes

And, naturally, accept increasingly larger ranges of numbers.