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我是两个日期之间的搜索记录的新手，并显示按月份排序的记录（从 1 月到 12 月）。

我有这样的桌子。

Employee  |  Salary  |  Date from  |  Date To  
John A.   |   15000  | 2013-05-26  |  2013-06-10  
Mark      |   15000  | 2013-05-26  |  2013-06-10  
John A.   |   15000  | 2013-06-11  |  2013-06-25 
Mark      |   20000  | 2013-06-11  |  2013-06-25

我希望报告显示为这样。

Employee  |   26 May - June 10   |  11 June - 25 June   | So on..  
John A.   |          15000       |         15000 
Mark      |          15000       |         20000

请看我的代码。这只会搜索两个日期之间的记录

SELECT * 
FROM payroll
WHERE datefrom >= '2013-01-01' 
AND dateto < '2013-12-31'

请给我一个想法如何解决这种情况。

4

2 回答 2

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您需要对数据进行透视，不幸的是，在 mysql 中，透视是静态的，因此您需要为每种情况编写它（但您可以使用脚本来完成），下面您有一个仅用于示例数据的示例，但可以继续。

尝试这个：

SELECT  
    employee,
    SUM(IF(datefrom='2013-05-26' AND dateto='2013-06-10',Salary,0)) as `26 May - June 10`,
    SUM(IF(datefrom='2013-06-11' AND dateto='2013-06-25',Salary,0)) as `11 June - 25 June`
FROM 
    payroll
WHERE 
    datefrom >= '2013-01-01' 
    AND dateto < '2013-12-31' 
GROUP BY
    employee
于 2013-06-27T07:36:38.780 回答
0

用php试试

  <?php

// connection
$dns = "mysql:host=localhost;dbname=***";
$dbh = new PDO($dns, 'user', '***');

// sql
$query = "SELECT DISTINCT (CONCAT(`datefrom` ,' ', `dateto` )) as `formated date`
          FROM empdetail";

$stmt   = $dbh->prepare($query);
$stmt->execute();

$case_string = '';

while($r = $stmt->fetch(PDO::FETCH_ASSOC))
{
   list($fromdate,$todate) = explode(' ',$r['formated date']);
   $from                   = date('d-M',strtotime($fromdate));
   $to                     = date('d-M',strtotime($todate));
   $case_string.= "SUM(IF(datefrom='{$fromdate}' AND dateto='{$todate}',Salary,0)) as `{$from} to {$to}`,";

}

$case_string  = rtrim($case_string,',');


$sql = "SELECT employee, {$case_string}
        FROM empdetail 
        GROUP BY employee";

$stmt1 = $dbh->prepare($sql);
$stmt1->execute();
while($r = $stmt1->fetch(PDO::FETCH_ASSOC))
{
   // do whatever you want
}
?>

在 PHYMYADMIN 中运行最终 SQL 时的输出

╔════════════╦═══════════════════╦══════════════════╗
║  employee  ║ 26-May to 10-Jun  ║ 11-Jun to 25-Jun ║
╠════════════╬═══════════════════╬══════════════════╣
║ john       ║            15000  ║            15000 ║
║ Mark       ║            15000  ║            20000 ║
╚════════════╩═══════════════════╩══════════════════╝
于 2013-06-27T09:51:34.243 回答