Question

here’s my sql query below:
Can you guys help me to convert this to a much cleaner one??

SELECT [PurchaseRequestID], [ProjectID],[FullName]
FROM PurchaseRequest
  WHERE [PurchaseRequestID] IN
    (SELECT [PurchaseRequestID] FROM PurchaseRequestDetail )
    AND [PurchaseRequestID] NOT IN
      (SELECT [PurchaseRequestID] FROM [PurchaseOrder] )

Though i have already converted this successfuly, i think this is not readable and needs to be rewritten:

var query = from a in db.PurchaseRequests
where
   (from b in db.PurchaseRequestDetails
    select new
    {
        b.PurchaseRequestID
    }).Contains(new { a.PurchaseRequestID }) &&
!(from c in db.PurchaseOrders
    select new
    {
        c.PurchaseRequestID
    }).Contains(new { a.PurchaseRequestID })
select a;

thanks

Answer 1

var query = from a in db.PurchaseRequests
where
   db.PurchaseRequestDetails.Any(x => x.PurchaseRequestID == a.PurchaseRequestID) &&
   !db.PurchaseOrders.Any(x => x.PurchaseRequestID == a.PurchaseRequestID)
select a;