删除查询结果之外的所有内容

Question

我想做的就是删除此查询不附带的所有内容：

Select Distinct PurchaseOrder.WellID, PurchaseOrder.JobiD, 
PurchaseOrderAccount.AccountCode, PurchaseOrder.PoNumber
From PurchaseOrder Join
PurchaseOrderAccount on PurchaseOrder.ID = PurchaseOrderAccount.PurchaseOrderID 

我尝试了很多事情。不幸的是我开始工作了。这是我尝试过的最后一件事：

Delete
from  PurchaseOrder
Where PurchaseOrder.ID

NOT IN (Select Distinct PurchaseOrder.ID
From PurchaseOrder Join
PurchaseOrderAccount on PurchaseOrder.ID = 
PurchaseOrderAccount.PurchaseOrderID 
)

Answer 1

我认为您可以做到：

Delete from PurchaseOrder
Where not exists (select 1
                  from PurchaseOrderAccount 
                  where PurchaseOrder.ID = PurchaseOrderAccount.PurchaseOrderID 
                 );