mysql函数date_format统计刷选按年月日统计的数据

/*原型*/

SELECT

	count(did) AS sum,

	date_format(releasetime, '%Y-%m-%d') AS releasetime

FROM hengtu_demand

WHERE 1

GROUP BY

	date_format(releasetime, '%Y-%m-%d')



/*按年分组  @参数 需求id sid=1*/

SELECT

	b.sid,

	b.`name` as sname,

	count(did) AS value,
　　　　 date_format(releasetime, '%Y') AS name

FROM

	hengtu_demand a

LEFT JOIN hengtu_service b ON a.sid = b.sid

WHERE

	b.`status` = 1

AND b.sid = 1

GROUP BY

	date_format(a.releasetime, '%Y')





/*按月分组  @参数 需求id sid=1  @参数 年份 2014*/

SELECT

	b.sid,

	b.`name` as sname,

	count(did) AS value,

	date_format(releasetime, '%Y') AS year,

	date_format(releasetime, '%m') AS month,

	date_format(releasetime, '%m') AS name

FROM

	hengtu_demand a

LEFT JOIN hengtu_service b ON a.sid = b.sid

WHERE

	b.`status` = 1

AND b.sid = 1

GROUP BY

	date_format(a.releasetime, '2014-%m')





/*按日分组  @参数 需求id sid=1  @参数 年份 2014  @参数 月份 1月*/

SELECT

	b.sid,

	b.`name` as sname,

	count(did) AS value,

	date_format(releasetime, '2014') AS year,

	date_format(releasetime, '11') AS month,

	date_format(releasetime, '%d') AS day,

	date_format(releasetime, '%d') AS name

FROM

	hengtu_demand a

LEFT JOIN hengtu_service b ON a.sid = b.sid

WHERE

	b.`status` = 1

AND b.sid = 1

GROUP BY

	date_format(a.releasetime, '2014-11-%d')



/**按年月查询加入where条件  正确标准语句*/

SELECT

	b.sid,

	b.`name` AS sname,

	count(did) AS value,

	date_format(releasetime, '%Y') AS year,

	date_format(releasetime, '%m') AS month,

	date_format(releasetime, '%d') AS day,

	date_format(releasetime, '%d') AS name

FROM

	hengtu_demand a

LEFT JOIN hengtu_service b ON a.sid = b.sid

WHERE

	b.`status` = 1

AND b.sid = ".$sid."

AND date_format(releasetime, '%m') = ".$month."

GROUP BY

	date_format(

		a.releasetime,

		'".$year."-".$month."-%d'

	)

/*
*如果数据库时间是以时间戳格式储存的就使用form_unixtime函数 

*/

　　使用示例

 /*

    *使用需求榜 总报表 第一步

    */ 

    function headreport(){

        $demandsortcount=M()->query("SELECT b.sid,b.`name`,COUNT('b.name') AS value 
　　　　　　　　　　　　　　　FROM hengtu_demand a 
　　　　　　　　　　　　　　　LEFT JOIN hengtu_service b ON a.sid = b.sid 
　　　　　　　　　　　　　　　WHERE b.`status` = 1 GROUP BY b.`name` ORDER BY value DESC");

         return $demandsortcount;

    }

     /*

    *使用需求榜 总报表 第二步 按年份分组

    *@param 需求id  sid=1

    */ 

    function yearreport($sid=''){

        $demandsortcount=M()->query("SELECT b.sid,b.`name` as sname,count(did) AS value,date_format(releasetime, '%Y') AS year,
　　　　　　　　　　　　　　　date_format(releasetime, '%Y') AS name FROM hengtu_demand a 

            　　　　　　　　LEFT JOIN hengtu_service b ON a.sid = b.sid 
　　　　　　　　　　　　　　　WHERE b.`status` = 1 AND b.sid = ".$sid." 
　　　　　　　　　　　　　　　GROUP BY date_format(a.releasetime, '%Y')");

         return $demandsortcount;

    }

    /*

    *使用需求榜 总报表 第二步 按月份分组

    *@param 需求id  sid=1

    *@param 年份    year=2014

    */ 

    function monthreport($sid='',$year=''){

        $demandsortcount=M()->query("SELECT b.sid,b.`name` AS sname,count(did) AS value,date_format(releasetime, '%Y') AS year,
　　　　　　　　　　　　　　 date_format(releasetime, '%m') AS month,date_format(releasetime, '%m') AS name FROM hengtu_demand a 
　　　　　　　　　　　　　　 LEFT JOIN hengtu_service b ON a.sid = b.sid 
　　　　　　　　　　　　　　 WHERE b.`status` = 1 AND b.sid = ".$sid." AND date_format(releasetime, '%Y') = ".$year." 
　　　　　　　　　　　　　　 GROUP BY date_format(a.releasetime,'%Y-%m')");

         return $demandsortcount;

    }

    /*

    *使用需求榜 总报表 第二步 按日份分组

    *@param 需求id  sid=1

    *@param 年份    year=2014

    *@param 月份    month=3月

    */ 

    function dayreport($sid='',$year='',$month=''){

        $demandsortcount=M()->query("SELECT b.sid,b.`name` AS sname,count(did) AS value,date_format(releasetime, '%Y') AS year,
　　　　　　　　　　　　　　　date_format(releasetime, '%m') AS month,date_format(releasetime, '%d') AS day,
　　　　　　　　　　　　　　　date_format(releasetime, '%d') AS name FROM hengtu_demand a 
　　　　　　　　　　　　　　　LEFT JOIN hengtu_service b ON a.sid = b.sid 
　　　　　　　　　　　　　　　WHERE b.`status` = 1 AND b.sid = ".$sid." AND date_format(releasetime, '%Y') = ".$year." AND date_format(releasetim　　　　　　　　　　　　　　　e, '%m') = ".$month." 
　　　　　　　　　　　　　　　GROUP BY date_format(a.releasetime,'%Y-%m-%d')");

         return $demandsortcount;

    }