我使用此查询来计算来自两个表的票证。
SELECT t1.institucion,
SUM(CASE WHEN t1.fecha LIKE '2016-07%' THEN 1 ELSE 0 END) AS July,
SUM(CASE WHEN t1.fecha LIKE '2016-08%' THEN 1 ELSE 0 END) AS August,
SUM(CASE WHEN t1.fecha LIKE '2016-09%' THEN 1 ELSE 0 END) AS September,
SUM(CASE WHEN t1.fecha LIKE '2016-10%' THEN 1 ELSE 0 END) AS October,
SUM(CASE WHEN t1.fecha LIKE '2016-11%' THEN 1 ELSE 0 END) AS November,
SUM(CASE WHEN t1.fecha LIKE '2016-12%' THEN 1 ELSE 0 END) AS December,
SUM(CASE WHEN t1.fecha LIKE '2017-01%' THEN 1 ELSE 0 END) AS January,
SUM(CASE WHEN t1.fecha LIKE '2017-02%' THEN 1 ELSE 0 END) AS February,
SUM(CASE WHEN t1.fecha LIKE '2017-03%' THEN 1 ELSE 0 END) AS March,
SUM(CASE WHEN t1.fecha LIKE '2017-04%' THEN 1 ELSE 0 END) AS April,
SUM(CASE WHEN t1.fecha LIKE '2017-05%' THEN 1 ELSE 0 END) AS May,
SUM(CASE WHEN t1.fecha LIKE '2017-06%' THEN 1 ELSE 0 END) AS June
FROM
(
SELECT institucion, fecha
FROM uploader n
UNION ALL
SELECT institucion, fecha
FROM uploaderedusystem s
) t1
INNER JOIN data t2
ON t1.institucion = t2.institucion
WHERE t2.erate = 'y'
group by t1.institucion;
我需要在t1中添加最后创建的故障单，因此，我将查询编辑为：
SELECT t1.institucion, max(t1.fecha) AS fecha ,
SUM(CASE WHEN t1.fecha LIKE '2016-07%' THEN 1 ELSE 0 END) AS July,
SUM(CASE WHEN t1.fecha LIKE '2016-08%' THEN 1 ELSE 0 END) AS August,
SUM(CASE WHEN t1.fecha LIKE '2016-09%' THEN 1 ELSE 0 END) AS September,
SUM(CASE WHEN t1.fecha LIKE '2016-10%' THEN 1 ELSE 0 END) AS October,
SUM(CASE WHEN t1.fecha LIKE '2016-11%' THEN 1 ELSE 0 END) AS November,
SUM(CASE WHEN t1.fecha LIKE '2016-12%' THEN 1 ELSE 0 END) AS December,
SUM(CASE WHEN t1.fecha LIKE '2017-01%' THEN 1 ELSE 0 END) AS January,
SUM(CASE WHEN t1.fecha LIKE '2017-02%' THEN 1 ELSE 0 END) AS February,
SUM(CASE WHEN t1.fecha LIKE '2017-03%' THEN 1 ELSE 0 END) AS March,
SUM(CASE WHEN t1.fecha LIKE '2017-04%' THEN 1 ELSE 0 END) AS April,
SUM(CASE WHEN t1.fecha LIKE '2017-05%' THEN 1 ELSE 0 END) AS May,
SUM(CASE WHEN t1.fecha LIKE '2017-06%' THEN 1 ELSE 0 END) AS June
FROM
(
SELECT institucion, fecha
FROM uploader n
where fecha <> '2017-07-31'
UNION ALL
SELECT institucion, fecha
FROM uploaderedusystem s
where fecha <> '2017-07-31'
) t1
INNER JOIN data t2
ON t1.institucion = t2.institucion
WHERE t2.erate = 'y'
group by t1.institucion;
查询在SQL Server Manager中运行得非常好，但是当我从php运行它时，当回显添加的列时，表总是空白。
这是我的PHP代码：
$currentyear = date(Y);
$nextyear = date(Y) +1;
$uploaderquery = "SELECT t1.institucion, max(t1.fecha) as fecha,
SUM(CASE WHEN t1.fecha LIKE '$currentyear-07%' THEN 1 ELSE 0 END) AS July,
SUM(CASE WHEN t1.fecha LIKE '$currentyear-08%' THEN 1 ELSE 0 END) AS August,
SUM(CASE WHEN t1.fecha LIKE '$currentyear-09%' THEN 1 ELSE 0 END) AS September,
SUM(CASE WHEN t1.fecha LIKE '$currentyear-10%' THEN 1 ELSE 0 END) AS October,
SUM(CASE WHEN t1.fecha LIKE '$currentyear-11%' THEN 1 ELSE 0 END) AS November,
SUM(CASE WHEN t1.fecha LIKE '$currentyear-12%' THEN 1 ELSE 0 END) AS December,
SUM(CASE WHEN t1.fecha LIKE '$nextyear-01%' THEN 1 ELSE 0 END) AS January,
SUM(CASE WHEN t1.fecha LIKE '$nextyear-02%' THEN 1 ELSE 0 END) AS February,
SUM(CASE WHEN t1.fecha LIKE '$nextyear-03%' THEN 1 ELSE 0 END) AS March,
SUM(CASE WHEN t1.fecha LIKE '$nextyear-04%' THEN 1 ELSE 0 END) AS April,
SUM(CASE WHEN t1.fecha LIKE '$nextyear-05%' THEN 1 ELSE 0 END) AS May,
SUM(CASE WHEN t1.fecha LIKE '$nextyear-06%' THEN 1 ELSE 0 END) AS June
FROM
(
SELECT institucion, fecha
FROM uploader n
UNION ALL
SELECT institucion, fecha
FROM uploaderedusystem s
) t1
INNER JOIN data t2
ON t1.institucion = t2.institucion
WHERE t2.erate = 'y'
group by t1.institucion;";
$tickets = sqlsrv_query($conn, $uploaderquery);
mysqli_close($conn);
echo '<table class="table table-striped table-bordered round">
<tr style="background-color:#84C600">
<th>Institution</th>
<th>July</th>
<th>August</th>
<th>September</th>
<th>October</th>
<th>November</th>
<th>December</th>
<th>January</th>
<th>February</th>
<th>March</th>
<th>April</th>
<th>May</th>
<th>June</th>
<th>Total</th>
</tr>' ;
while ($record = sqlsrv_fetch_array($tickets)){
$status_colors = array(0 => '#FF9999');
$status_colors2 = array(0 => 'red');
$july = $record['July'];
$august = $record['August'];
$september = $record['September'];
$october = $record['October'];
$november = $record['November'];
$december = $record['December'];
$january = $record['January'];
$february = $record['February'];
$march = $record['March'];
$april = $record['April'];
$may = $record['May'];
$june = $record['June'];
$lastvisit = $record['fecha'];
$alert = $july + $august + $september + $october + $november + $december + $january + $february + $march + $april + $may + $june;
$icon = '';
if ($alert == 0){
$icon = '<i style="color:red" class="fa fa-exclamation" aria-hidden="true"></i> ';
};
echo '
<tr>
<td>'.$icon.' '.$record['institucion'] .'</td>
<td style="color:'.$status_colors[$july].'">'.$record['July'].' </td>
<td style="color:'.$status_colors[$august].'">'.$record['August'].' </td>
<td style="color:'.$status_colors[$september].'">'.$record['September'].' </td>
<td style="color:'.$status_colors[$october].'">'.$record['October'].' </td>
<td style="color:'.$status_colors[$november].'">'.$record['November'].' </td>
<td style="color:'.$status_colors[$december].'">'.$record['December'].' </td>
<td style="color:'.$status_colors[$january].'">'.$record['January'].' </td>
<td style="color:'.$status_colors[$february].'">'.$record['February'].' </td>
<td style="color:'.$status_colors[$march].'">'.$record['March'].' </td>
<td style="color:'.$status_colors[$april].'">'.$record['April'].' </td>
<td style="color:'.$status_colors[$may].'">'.$record['May'].' </td>
<td style="color:'.$status_colors[$june].'">'.$record['June'].' </td>
<td style="color:'.$status_colors2[$alert].'">'.$alert.'</td>
<td style="color:'.$status_colors2[$alert].'">'.$record['fecha'].'</td>
</tr>';
}
echo '</table>';
如果我删除行<td style="color:'.$status_colors2[$alert].'">'.$record['fecha'].'</td>，一切都会完美运行。