Question

参考我之前的问题。

How to further filter GROUP BY record in mysql? 有三个不同的页面，我将使用相同的查询，但具有不同的日期，如下所示：在week_fallowup.php中，日期范围是

s_date = 21/2015年9月

e_date = 28/2015年9月

在fornight_fallowup.php日期范围是

s_date = 29/2015年9月

e_date = 13 / Oct / 2015

在month_fallowup.php中，日期范围是

s_date = 14/2015年9月

有三个后续页面Week_followup.php，Fornight_followup.php＆amp; Month_followup.php，我正在使用以下三个查询：

/////////////   QUERY for week_followup.php  \\\\\\\\\\\\\\\\\\\\\
$sql="SELECT * FROM sales_queries AS sq INNER JOIN ( SELECT MAX(Query_id) AS mId FROM sales_queries WHERE follow_up BETWEEN '".$s_date."' AND '".$e_date."' GROUP BY nic_id ) AS subsq ON subsq.mId = sq.Query_id";

///////////// QUERY for fornight_followup.php \\\\\\
$sql="SELECT * FROM sales_queries AS sq INNER JOIN ( SELECT MAX(Query_id) AS mId FROM sales_queries WHERE follow_up BETWEEN '".$s_date."' AND '".$e_date."' GROUP BY nic_id ) AS subsq ON subsq.mId = sq.Query_id";

///////////// QUERY for month_followup.php \\\\\\
$sql="SELECT * FROM sales_queries AS sq INNER JOIN ( SELECT MAX(Query_id) AS mId FROM sales_queries WHERE follow_up > '".$s_date."' GROUP BY nic_id ) AS subsq ON subsq.mId = sq.Query_id";

它运作完美但是当有人在月份页面上查询并在下周给出休息日期时，它会在周和月的两个页面上显示我想要的是，它只显示一个MAX（Query_id），它在week_followup.php，fornight_followup.php或month_followup.php中。 ONLY MAX（query_id）

Answer 1

Forexample 在week_fallowup.php中，日期范围是