How exactly would a blog-type application work with a MySQL database?


Like... I need to make a... thing that will...

So I log in, and go to page X.
there is a textarea on that page.
I type something in and push submit.
It makes what I typed in on the textarea appear on another page... sort of like a CMS.

How would that work in a database?

SELECT * FROM `lolkitty` WHERE (how do I know where? ahh >.<)

:/ Really, how do I know what row to select? How do you select the last row... Come to think of it, how are rows stored?

Are they like...
First Entry
Second Entry
Third Entry

or are they
Third Entry
Second Entry
First entry

or are the rows not organized by entries? @.@