Checking sequence of numbers and populate a flag if number is out of sequence - response (1) by RB185048

Hi.. Hope below query helps you out.. sel Serial_Number, Send_Date , Count(*)  as File_Count , Case When ( Max_Seq - Min_Seq ) + 1 = File_Count Then ' No'  Else 'YES' END as Non_Seq_Flag, Min (File_Number) as  Min_Seq, max( File_Number) as Max_Seq from <<Source_Table>> group by Serial_Number, Send_Date regards, Rupesh