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SQL Server:seleziona le righe più recenti la cui somma corrisponde a un valore

Declare @YourTable table (ID int,QTY int,DATE varchar(25), CURRENT_STOCK int)
Insert Into @YourTable values
(1     ,1      ,'Jan'     ,30),
(2     ,1      ,'Feb'     ,30),
(3     ,2      ,'Mar'     ,30),
(4     ,6      ,'Apr'     ,30),
(5     ,8      ,'May'     ,30),
(6     ,21     ,'Jun'     ,30)


Select A.*
 From  @YourTable A
 Where ID>= (
                Select LastID=max(ID)
                 From  @YourTable A
                 Cross Apply (Select RT = sum(Qty) from @YourTable where ID>=A.ID) B
                 Where B.RT>=CURRENT_STOCK
             )

Resi 

ID  QTY DATE    CURRENT_STOCK
4   6   Apr     30
5   8   May     30
6   21  Jun     30