#1 gflhx
每次执行sql语句的时候,让一个字段自动减5,我是这样写的
$sql_yue = "update driver_info set info_residual = info_residual-5 where driver_number = 'A001'";
$data_yue = $tb->runSql($sql_yue);
原来 info_residual 是10的话,一执行就成了0了,应该是5的。
好像是执行了2次.这是为什么?
2013-02-28 12:58:26
2013-02-28 12:58:26
2013-02-28 13:03:08
$tb->decrField(array('driver_number' => 'A001'), 'info_residual', 5);
2013-02-28 14:01:12