标签：and mysq nbsp blog 返回 div 随机 log select
RAND() 用于返回一个随机浮点值，范围在 0 ~ 1 之间
mysql> SELECT RAND(), RAND(), RAND(); +--------------------+--------------------+---------------------+ | RAND() | RAND() | RAND() | +--------------------+--------------------+---------------------+ | 0.7393965169222994 | 0.5185907432051289 | 0.37476419599239175 | +--------------------+--------------------+---------------------+
标签：and mysq nbsp blog 返回 div 随机 log select
原文地址：http://www.cnblogs.com/pzk7788/p/6891740.html
