select
ORDER_NO as OD_NO,
SLIP_COMMENT as COMMENT,
SLIP_COMMENT,
-- length(SLIP_COMMENT) as a,
-- length(replace(SLIP_COMMENT,',','')) as b ,
length(SLIP_COMMENT)-length(replace(SLIP_COMMENT,',',''))+1 as CNT
from ORDERS
order by CNT desc,OD_NO desc
;