我想这超出了我的能力范围，我想转换MYSQL查询，使其显示的行和列与下面的完全一样：
这是我用MYSQL查询创建的：
下面是创建此项的实际查询：
SELECT h.workdate AS `Date`
, DAYNAME(h.workdate) AS `Day`
, COALESCE(TRUNCATE(SUM(
CASE
WHEN (shift='AM' AND DriverDock = 'Driv' AND `Salary Code Description` LIKE '%Perm%')
THEN
CASE
WHEN paycode IN ('03 Overtime 2.0')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 2.0)
WHEN paycode IN ('02 Overtime 1.5')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 1.5)
WHEN paycode IN ('01 Ordinary')
THEN (employeehours * p.`Base Rate`)
END
END
),2),0) AS `AMPERMDRIV`
, COALESCE(TRUNCATE(SUM(
CASE
WHEN (shift='AM' AND DriverDock = 'Dock' AND `Salary Code Description` LIKE '%Perm%')
THEN
CASE
WHEN paycode IN ('03 Overtime 2.0')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 2.0)
WHEN paycode IN ('02 Overtime 1.5')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 1.5)
WHEN paycode IN ('01 Ordinary')
THEN (employeehours * p.`Base Rate`)
END
END
),2),0) AS `AMPERMDOCK`
, COALESCE(TRUNCATE(SUM(
CASE
WHEN (shift='AM' AND DriverDock = 'Driv' AND `Salary Code Description` LIKE '%Cas%')
THEN
CASE
WHEN paycode IN ('03 Overtime 2.0')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 2.0)
WHEN paycode IN ('02 Overtime 1.5')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 1.5)
WHEN paycode IN ('01 Ordinary')
THEN (employeehours * p.`Base Rate`)
END
END
),2),0) AS `AMCASUDRIV`
, COALESCE(TRUNCATE(SUM(
CASE
WHEN (shift='AM' AND DriverDock = 'Dock' AND `Salary Code Description` LIKE '%Cas%')
THEN
CASE
WHEN paycode IN ('03 Overtime 2.0')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 2.0)
WHEN paycode IN ('02 Overtime 1.5')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 1.5)
WHEN paycode IN ('01 Ordinary')
THEN (employeehours * p.`Base Rate`)
END
END
),2),0) AS `AMCASUDOCK`
, COALESCE(TRUNCATE(SUM(
CASE
WHEN (shift='AM' AND DriverDock = 'Driv' AND `Salary Code Description` LIKE '%AGENT%')
THEN
CASE
WHEN paycode IN ('03 Overtime 2.0')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 2.0)
WHEN paycode IN ('02 Overtime 1.5')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 1.5)
WHEN paycode IN ('01 Ordinary')
THEN (employeehours * p.`Base Rate`)
END
END
),2),0) AS `AMAGENTDRIV`
, COALESCE(TRUNCATE(SUM(
CASE
WHEN (shift='AM' AND DriverDock = 'Dock' AND `Salary Code Description` LIKE '%AGENT%')
THEN
CASE
WHEN paycode IN ('03 Overtime 2.0')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 2.0)
WHEN paycode IN ('02 Overtime 1.5')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 1.5)
WHEN paycode IN ('01 Ordinary')
THEN (employeehours * p.`Base Rate`)
END
END
),2),0) AS `AMAGENTDOCK`
, COALESCE(TRUNCATE(SUM(
CASE
WHEN (shift='PM' AND DriverDock = 'Driv' AND `Salary Code Description` LIKE '%Perm%')
THEN
CASE
WHEN paycode IN ('03 Overtime 2.0')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 2.0)
WHEN paycode IN ('02 Overtime 1.5')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 1.5)
WHEN paycode IN ('01 Ordinary')
THEN (employeehours * p.`Base Rate`)
END
END
),2),0) AS `PMPERMDRIV`
, COALESCE(TRUNCATE(SUM(
CASE
WHEN (shift='PM' AND DriverDock = 'Dock' AND `Salary Code Description` LIKE '%Perm%')
THEN
CASE
WHEN paycode IN ('03 Overtime 2.0')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 2.0)
WHEN paycode IN ('02 Overtime 1.5')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 1.5)
WHEN paycode IN ('01 Ordinary')
THEN (employeehours * p.`Base Rate`)
END
END
),2),0) AS `PMPERMDOCK`
, COALESCE(TRUNCATE(SUM(
CASE
WHEN (shift='PM' AND DriverDock = 'Dock' AND `Salary Code Description` LIKE '%Cas%')
THEN
CASE
WHEN paycode IN ('03 Overtime 2.0')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 2.0)
WHEN paycode IN ('02 Overtime 1.5')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 1.5)
WHEN paycode IN ('01 Ordinary')
THEN (employeehours * p.`Base Rate`)
END
END
),2),0) AS `PMCASUDOCK`
, COALESCE(TRUNCATE(SUM(
CASE
WHEN (shift='PM' AND DriverDock = 'Dock' AND `Salary Code Description` LIKE '%AGENT%')
THEN
CASE
WHEN paycode IN ('03 Overtime 2.0')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 2.0)
WHEN paycode IN ('02 Overtime 1.5')
THEN (employeehours * IF(p.`Other Rate`=0,p.`Base Rate`,p.`Other Rate`) * 1.5)
WHEN paycode IN ('01 Ordinary')
THEN (employeehours * p.`Base Rate`)
END
END
),2),0) AS `PMAGENTDOCK`
FROM employeedata d
JOIN employeehours h
ON d.`ID Number` = h.employeeid
JOIN historyemployeepay p
ON (h.employeeid = p.EmployeeID)
AND (h.workdate >= p.FromDate)
AND (h.workdate <= p.ToDate OR p.ToDate IS NULL)
CROSS
JOIN otherrates r
WHERE DAYNAME(h.workdate) <> 'Saturday'
GROUP BY h.workdate
我有下面的html表，如何循环查询结果并正确显示？:
<?php
$querydailyoperations=mysql_query("
QUERY ABOVE
");
while($querydailyoperationsshow=mysql_fetch_array($querydailyoperations)){ echo "??????????";};
?>
以及：
<tr><td class="greencell">AM</td><td class="greencell">PERMANENT</td><td class="greencell">DRIVER</td>5x td here, input from above query...
</tr>
<tr><td class="greencell">AM</td><td class="greencell">PERMANENT</td><td class="dbluecell">DH</td> etc...
</tr>
<tr><td class="greencell">AM</td><td class="orangecell">CASUAL</td><td class="greencell">DRIVER</td> etc...
</tr>
<tr><td class="greencell">AM</td><td class="orangecell">CASUAL</td><td class="dbluecell">DH</td> etc...
</tr>
<tr><td class="greencell">AM</td><td nowrap class="redcell">AGENT LABOUR</td><td class="greencell">DRIVER</td> etc...
</tr>
<tr><td class="greencell">AM</td><td nowrap class="redcell">AGENT LABOUR</td><td class="dbluecell">DH</td> etc...
</tr>
<tr><td class="bluecell">PM</td><td class="greencell">PERMANENT</td><td class="greencell">DRIVER</td> etc...
</tr>
<tr><td class="bluecell">PM</td><td class="greencell">PERMANENT</td><td class="dbluecell">DH</td> etc...
</tr>
<tr><td class="bluecell">PM</td><td class="orangecell">CASUAL</td><td class="dbluecell">DH</td> etc...
</tr>
<tr><td class="bluecell">PM</td><td nowrap class="redcell">AGENT LABOUR</td><td class="dbluecell">DH</td> etc...
</tr>
</tbody>
</table>
最佳答案
使用SQL查询可以得到结果，但这并不简单。
但在你走这条路之前，我建议你考虑另一种方法。
由于查询返回的行相对较少，因此可以将整个结果集作为二维数组检索到PHP中。
以一个相当简单的例子为例：
SELECT foo, fee, fi, fo, fum
FROM mytable
ORDER BY foo
foo fee fi fo fum
--- --- --- --- ---
ABC 2 3 5 7
DEF 11 13 17 19
我们可以执行一个fetchAll，得到一个二维数组，然后循环遍历该数组并按列而不是按行检索值。一种方法是将接收到的阵列转换为如下所示的新阵列：
bar ABC DEF
--- --- ---
fee 2 11
fi 3 13
fo 5 17
fum 7 19
其实不需要进行转换，可以遍历原始数组。但是，将转换分离为单独的步骤可能会使您的代码更容易一些，当您真正将输出生成到页面时。（这似乎是一个很常见的问题，有人可能编写了一个函数来完成您想要的数组转换。我不认为有PHP内置程序可以做到这一点。
标题：
array { [0]=>'bar' [1]=>'ABC' [2]=>'DEF' }
排：
array {
[0]=>array { [0]=>'fee' [1]=>'2' [2]=>'11' }
[1]=>array { [0]=>'fi' [1]=>'3' [2]=>'13' }
[2]=>array { [0]=>'fo' [1]=>'5' [2]=>'17' }
[3]=>array { [0]=>'fum' [1]=>'7' [2]=>'19' }
}
对于像您这样的一小部分行，我将选择在PHP而不是SQL中执行此操作。
但你问过如何用SQL来实现。正如我之前所说，这不是小事。
SQL要求SELECT语句定义要返回的每一列；当语句执行时，列的数量和类型不能是动态的。
如果我们构建另一个定义列的查询（除了原始查询），并返回我们期望返回的带有值占位符的行，那么我们就完成了一半。剩下的就是对原始查询返回的行进行外部联接，并有条件地返回相应行上的列值。
如果您有一组预定义的行和列，我们需要返回这些行和列，特别是当原始行源是稀疏的，并且我们需要生成“缺少的”行时，这种方法就可以工作。（例如，获取所订购产品的计数，并且有很多缺少的行，没有一种好的方法来生成缺少的行。
例如：
SELECT r.bar
, '' AS `ABC`
, '' AS `DEF`
FROM ( SELECT 'fee' AS bar
UNION ALL SELECT 'fi'
UNION ALL SELECT 'fo'
UNION ALL SELECT 'fum'
) r
GROUP BY r.bar
将返回：
bar ABC DEF
--- --- ---
fee
fi
fo
fum
这样，我们就可以定义所有的列，以及要返回的所有行。第一列已填充。这个查询还不需要GROUP BY，但是一旦与“real”源结果集中的行匹配，我们就需要它了。
现在的“技巧”是匹配来自源代码的行，并根据适当的条件从列返回值。
我们要生成的结果集基本上是这样的：
bar foo ABC DEF
--- --- --- ---
fee ABC 2
fee DEF 11
fi ABC 3
fi DEF 13
fo ABC 5
fo DEF 15
fum ABC 7
fum DEF 17
然后我们将“折叠”这些行，方法是从resultset中移除foo列并在
bar上执行GROUP by。我们将使用聚合函数（MAX或SUM），利用它们对空值的处理，生成如下结果：bar foo ABC DEF
--- --- --- ---
fee 2 11
fi 3 13
fo 5 15
fum 7 17
使用这个相当笨拙的SQL：
SELECT r.bar
, MAX(CASE WHEN t.foo = 'ABC' THEN CASE r.bar
WHEN 'fee' THEN t.fee
WHEN 'fi' THEN t.fi
WHEN 'fo' THEN t.fo
WHEN 'fum' THEN t.fum
END END) AS 'ABC'
, MAX(CASE WHEN t.foo = 'DEF' THEN CASE r.bar
WHEN 'fee' THEN t.fee
WHEN 'fi' THEN t.fi
WHEN 'fo' THEN t.fo
WHEN 'fum' THEN t.fum
END END) AS 'DEF'
FROM ( SELECT 'foo' AS col
UNION ALL SELECT 'fee'
UNION ALL SELECT 'fi'
UNION ALL SELECT 'fo'
UNION ALL SELECT 'fum'
) r
CROSS
JOIN mysource t
GROUP BY r.bar
请注意，上面查询中的
mysource可以替换为一个内联视图，在返回所需行的适当查询周围包装parens。别名为
r的内联视图是返回要返回的行的源代码。“选择”列表中的表达式正在执行条件测试，以便为每行中的每列选择正确的值。
考虑到CASE语句的常规模式，可以使用一些SQL来帮助生成查询，但这必须作为单独的步骤来完成。该SQL的输出可用于帮助形成我们需要的实际查询。
在您的例子中，考虑到
workdate是您想要用于列标题的，这可能需要动态生成。（您可以从原始源查询中删除第二列“星期几”列，并将其移动到外部查询。如果在运行查询之前我不知道标题的
workdate值，那么我会选择创建一个临时表，并用原始查询的结果填充它，然后查询临时表，以获取workdate标题和生成行的“第一列”。然后对临时表运行实际查询。重复一下，我认为最好用PHP对原始查询的结果进行转换/透视，而不是用SQL。
关于php - PHP和Mysql查询，使用PHP将行转换为列，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/22394073/