Select the SECOND LAST record in each group

Question

There is a table Remark that contains data as shown below:

       SerialNo | RemarkNo  | Desp
=============================================
             


        

Answer 1

Try:

select s.SerialNo, r.RemarkNo, r.Desp
from (select SerialNo, max(RemarkNo) maxRemark from Remark group by SerialNo) s
left join Remark r on s.SerialNo = r.SerialNo and s.maxRemark-1 = r.RemarkNo

(SQLFiddle here.)