sql server - Nested Group BY Sql Query -


मेरे एसक्यूएल सर्वर डीबी

1 - & gt; ग्रुपलिस्ट 

  ग्रुपआईडी || समूहनाम   
 2 - & gt; मशीन लिस्ट  <प्री>  MachineID || समूहआईडी || || मशीननाम   
 3 - & gt; कैप्चर लॉज  <प्री>  लॉगआईडी || MachineID || VoilationWord   
 मुझे निम्न रिपोर्ट प्राप्त करने के लिए एक क्वेरी की आवश्यकता है  
  GroupName || MachineCountInGroup ||   
 
 
 आप कर सकते हैं MachineName, (मशीनगली से चुनें गिनती (1) जहां MachineCountInGroup के रूप में (GroupID = grp.GroupID) के रूप में चयन करें, (चुनें गिनती (1) MachineList आंतरिक से CaptureLogs पर CaptureLogs.MachineID = MachineList .MachineID GroupID = grp.GroupID) GroupList grp से TotalLogCountByMachinesInGroup के रूप में   
 मुझे यकीन है कि बेहतर तरीका है लेकिन यह काम करेगा।

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