我有一个mysql数据库,如下所示:Timestamp是一种datetime数据类型,我需要获取按月、日和小时分组的数据。我使用mysql和php编写脚本。通过以下查询,我可以按月和按天完成此操作:
$query = "SELECT COUNT(id) as totals FROM security_transactions WHERE YEAR(timestamp) = 2012 GROUP BY MO
$query = mysql_query('SELECT * from rbf_edades_news order by month DESC '.$query = mysql_query('SELECT * from rbf_edades_news order by month and DESC '.$limit.'');
谢谢!
我正试图从MYSQL数据库中获得每月销售总额,并将其按月相加,并在最后的X个月中使用月份名称。我针对的两列是: total_customer_charged和local_time。我的查询几乎正常工作,问题是结果出来的顺序有时会随每次查询而改变。有人能给我一些提示使我的查询正确吗?select date_format(local_time,'%M'),sum(total_customer_charged) FROM ORD