这是怎么回事呀？

SQL:
SELECT m. sw,m.username,b.rob_times,b.rob_amount FROM [Table]blackband b,[Table]members m WHERE m.uid=b.uid
ORDER BY m. DESC,b.rob_times DESC,b.rob_amount DESC
LIMIT 10
Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DESC,b.rob_times DESC,b.rob_amount DESC
LIMIT 10' at line 2
Errno.: 1064

Similar error report has beed dispatched to administrator before.

什么情况出现的？
貌似语法错误