我目前正在尝试查询仓库中 PLC 上发生的前 15 个故障的列表。我已经把那部分记下来了：
Select top 15 fault_number, fault_message, count(*) FaultCount
from Faults_Stator
where T_stamp> dateadd(hour, -18, getdate())
Group by Fault_number, Fault_Message
Order by Faultcount desc
HOOOWEVER 我现在需要找出前 15 个列表中所述故障的累积停机时间，另一列“Fault_duration”中的信息。我该怎么做呢？在此先感谢，你们已经帮了我很多。
+--------------+---------------------------------------------+------------+
| Fault Number | Fault Message | FaultCount |
+--------------+---------------------------------------------+------------+
| 122 | ST10: Part A&B Failed | 23 |
| 4 | ST16: Part on Table B | 18 |
| 5 | ST7: No Spring Present on Part A | 15 |
| 6 | ST7: No Spring Present on Part B | 12 |
| 8 | ST3: No Pin Present B | 8 |
| 1 | ST5: No A Housing | 5 |
| 71 | ST4: Shuttle Right Not Loaded | 4 |
| 144 | ST15: Vertical Cylinder did not Retract | 3 |
| 98 | ST8: Plate Loader Can not Retract | 3 |
| 72 | ST4: Shuttle Left Not Loaded | 2 |
| 94 | ST8: Spring Gripper Cylinder did not Extend | 2 |
| 60 | ST8: Plate Loader Can not Retract | 1 |
| 83 | ST6: No A Spring Present | 1 |
| 2 | ST5: No B Housing | 1 |
| 51 | ST4: Vertical Cylinder did not Extend | 1 |
+--------------+---------------------------------------------+------------+
我知道我不会使用相同的查询，但我不知道下一步该怎么做。
故障持续时间是一列，指示故障持续多长时间（以毫秒为单位）。我正在尝试将那些累积到相应的故障旁边。因此，第一个违规者将在另一列中将这 23 个单独的故障事件汇总在其旁边。