转载自：http://blog.csdn.net/dragonpeng2008/article/details/7279590
Error: 1175 SQLSTATE: HY000 (ER_UPDATE_WITHOUT_KEY_IN_SAFE_MODE)
Message: You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column.
Solution：
SET SQL_SAFE_UPDATES =
0;