I would like some help with the following select statement.
I get the error [Code: -199, SQL State: 37000] [IBM][System i Access ODBC Driver][DB2 for i5/OS]SQL0199 - Keyword IN not expected. Valid tokens: + -.
select acctno, ratcod, ssno
from (select acctno, ratcod, ssno from resdat19.lnmast lnmast
group by ssno
having sum(case ratcod in (6, 7 ,8) then 1 else 0 end) > 0
and sum(case ratcod in (6, 7, 8) then 0 else 1 end) > 0
ON lnmast.ssno = ASum.ssno