오류 해결 좀 해주세요

select * from where wr_id = '127'

1064 : 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 'where wr_id = '127'' at line 1

error file : /bbs/write_update.php

잘되던 게시판에서 이러한 오류가 발생합니다.
왜 그런가요?