sql - Select closest match -


i trying merge 2 tables (pc mc), statement below yield multiple records mc. i'd query return match in mc cast(pc.ten date) - cast(mc.to date) positive small possible. how do that? 

create table test select distinct pc.number, mc.number pc inner join mc on pc.member = mc.member , pc.ned = mc.ned , cast(pc.ten date) between cast(mc.to date) + 1 , cast(mc.to date) + 11 , pc.ned not null , mc.ned not null; 

create or replace view test     select n1, n2    (     select        pc.number n1,        mc.number n2,        row_number() on (order cast(pc.ten date) - cast(mc.to date) asc) rank     pc     inner join mc on pc.member = mc.member , pc.ned = mc.ned      cast(pc.ten date) - cast(mc.to date) > 0   )    rank = 1

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