Question

假设我的搜索页面上有两个下拉列表和一个按钮：

From
<select id="1stdate">
Until
<select id="2nddate">
<input type="button" id="search">

我想从1stdate搜索数据直到2nddate，如何在这种情况下使用WHERE CLAUSE？对于前我想搜索“从09-2010到11-2010”的数据。我的查询：

SELECT CONCAT( YEAR(Inspection_datetime ),'-',LPAD(MONTH(Inspection_datetime),2,'0'))
FROM `inspection_report`
GROUP BY  CONCAT( MONTH(Inspection_datetime ),YEAR(Inspection_datetime))
ORDER BY  CONCAT( MONTH(Inspection_datetime ),YEAR(Inspection_datetime))  DESC

Answer 1

我通常会这样做：

<?php

list($m1, $y1) = explode($_1stdate);
list($m2, $y2) = explode($_2nddate);

$date1 = "$y1-$m1-01";
$date2 = "$y2-$m2-" . date("t", mktime(0,0,0,$m2, 1, $y2));

$sql = "SELECT *
FROM `inspection_report`
WHERE DATE(Inspection_datetime) BETWEEN '$date1' AND '$date2'";

请注意：为简单起见，我不添加表单验证。

Answer 2

这就是你需要的：

WHERE Inspection_datetime BETWEEN $1stdate AND $2nddate

所以它会导致

SELECT CONCAT( YEAR(Inspection_datetime ),'-',LPAD(MONTH(Inspection_datetime),2,'0'))
FROM `inspection_report` WHERE Inspection_datetime BETWEEN $1stdate AND $2nddate
GROUP BY  CONCAT( MONTH(Inspection_datetime ),YEAR(Inspection_datetime))
ORDER BY  CONCAT( MONTH(Inspection_datetime ),YEAR(Inspection_datetime))  DESC

对于从日期到B日期的搜索数据，请使用WHERE CLAUSE

2 个答案: