2 mySQL tabele

1)
SELECT usertext.id, usertext.title, usertext.date, usertext.authorID, usertext.points FROM usertext WHERE usertext.category=9 ORDER BY usertext.title

2)
SELECT usertext.id, usertext.title, usertext.date, usertext.authorID, usertext.points FROM usertext, user WHERE usertext.category=9 ORDER BY usertext.title

3)
SELECT usertext.id, usertext.title, usertext.date, usertext.authorID, usertext.points FROM usertext, user WHERE usertext.category=9 ORDER BY user.username

Primer 1 dela, 2 in 3 mi pa vsako vrstico vržeta po 5 krat. Kaj je narobe?