mysql> update test set create_time=concat(‘2013-10-01 ‘, floor(10+rand()*10),‘:‘,floor(10+rand()*49),‘:‘,floor(10+rand()*49)) where create_time=‘0000-00-00 00:00:00‘; Query OK, 1 row affected Rows matched: 1 Changed: 1 Warnings: 0
原文：http://www.cnblogs.com/zhchoutai/p/7045559.html
