Question

How do you perform a

Select top N * from as400table

type query against an as400/db2 database

Answer 1

Select col1,col2
from 
as400table
where col1='filter'
order by col1
fetch first N row only

Remember to set an ORDER BY clause, because DB2 does not guarantee that the rows returned by FETCH FIRST N ROW ONLY are always the same N.