我正在处理工单进度系统。
我有这个问题:
SELECT c.sheet_no
, c.step
, a.crew_est
, a.manhour_est
, c.act_hours
FROM work_sheet_machine a
LEFT
JOIN machine_master_data b
ON a.machine_code = b.code
JOIN daily_activity_control_card-man c
ON c.wo_number = a.wo_number
AND c.sheet_no = a.sheet
AND c.step = a.serial
LEFT
JOIN machine_master_data d
ON c.machine_code = d.code
WHERE a.wo_number = 'I7474549';
MYSQL将此结果返回给我:
+----------+------+----------+-------------+-----------+
| sheet_no | step | crew_est | manhour_est | act_hours |
+----------+------+----------+-------------+-----------+
| 1 | 1 | 1 | 0.5 | 35 |
| 1 | 2 | 2 | 2 | 11 |
| 1 | 2 | 2 | 2 | 11 |
| 1 | 3 | 2 | 3 | 11 |
+----------+------+----------+-------------+-----------+
4 rows in set (0.00 sec)
结果很好,但我需要为每个相同的步骤编号获得 total_act_hours ,因此我需要获得的结果如下所示(请点击运行代码段以查看结果):
<table border="1">
<tr>
<td> sheet_no </td>
<td> step </td>
<td> crew_est </td>
<td> manhour_est </td>
<td> act_hours </td>
<td> total_act_hours </td>
</tr>
<tr>
<td> 1 </td>
<td> 1 </td>
<td> 1 </td>
<td> 0.5 </td>
<td> 35 </td>
<td> 35 </td>
</tr>
<tr>
<td> 1 </td>
<td> 2 </td>
<td> 2 </td>
<td> 2 </td>
<td> 11 </td>
<td rowspan="2"> 11 </td>
</tr>
</tr>
<tr>
<td> 1 </td>
<td> 2 </td>
<td> 2 </td>
<td> 2 </td>
<td> 11 </td>
</tr>
<tr>
<td> 1 </td>
<td> 3 </td>
<td> 2 </td>
<td> 2 </td>
<td> 3 </td>
<td> 11 </td>
</tr>
</table>
&#13;
如何在MYSQL查询或MYSQL + PHP代码中实现此目的?
Anyhelp将不胜感激。 谢谢。