Редактирование: MySQL (раздел)

=== Multiple conditions, AND and OR ===

So from here on, when we talk about conditions, we mean stuff in the WHERE section. You learned pretty much everything about filtering by columns already, so we'll concentrate on how to get the data you want. Let's suppose you want to select people who joined between 2 weeks ago and a week ago. So people who were already here 7 days ago, but were not yet here 14 days ago. Their DATEDIFF(Now(),firstseen) has to be higher than 7, but lower than 14. Well, the section title gave it away:

SELECT *<br>
FROM ss13_player<br>
WHERE DATEDIFF(Now(),firstseen) >= 7
:AND DATEDIFF(Now(),firstseen) < 14

You can use AND, OR, NOT and XOR. &&, || and ! also work, but it is more common to use the words, so I encourage you to do that. Brackets ( and ) also work.