Perbarui Kueri dengan Subkueri Berkorelasi

Meskipun saya pikir JOIN kriteria sangat tidak mungkin, sepertinya Anda mencoba melakukan ini?

EDIT:Saya telah memodifikasi JOIN kriteria tetapi inilah yang Anda cari.Grouping By kolom yang OR 'd aneh.

;WITH MinOrderDates AS
(
    SELECT   CustID 
            ,OrderDate  = MIN(OrderDate)
    FROM Orders
    GROUP BY CustID
)

UPDATE C
SET FirstOrderDate = MIN(O.OrderDate)
FROM Customers      C
JOIN MinOrderDates  O   ON C.Id = O.CustID

Seperti inilah tampilan kueri Anda dengan OR s

;WITH MinOrderDates AS
(
    SELECT   ShipperId
            ,PickupId
            ,ConsigneeId
            ,DeliveryId
            .BillingId
            ,OrderDate  = MIN(OrderDate)
    FROM Orders
    GROUP BY ShipperId
            ,PickupId
            ,ConsigneeId
            ,DeliveryId
            .BillingId
)

UPDATE C
SET FirstOrderDate = MIN(O.OrderDate)
FROM Customers      C
JOIN MinOrderDates  O   ON o.ShipperId     = C.Id or
                           o.PickupId      = C.Id or
                           o.ConsigneeId   = C.Id or
                           o.DeliveryId    = C.Id or
                           o.BillingId     = C.Id 

EDIT:Meskipun saya kesulitan menemukan kesalahan dengan sintaks yang Anda posting.