sql server - Creating a Trigger to update -


i trying create trigger populate column row being updated. here did, it's not working:

create trigger psl_cases_address on dbo.psl_cases after insert, update   begin       if update(permit_no) /*if column not affected skip*/         begin             update psl_cases              set address = (                 select top 1 permits.address                  permits                  left outer join psl_cases on psl_cases.permit_no=permits.permitsid                  psl_cases.psl_casesid=psl_casesid             )              dbo.psl_cases.psl_casesid = psl_casesid;         end   end;  

any ideas might doing wrong?

i think looking for

create trigger psl_cases_address on dbo.psl_cases after insert, update  begin   if update(permit_no) /*if column not affected skip*/     begin          update psl_cases          set psl_cases.[address] = permits.[address]           inserted inner join psl_cases on                  inserted.[permit_no] = psl_cases.[permitsid]           inner join permits          on inserted.[permit_no] = permits.[permitsid]                  end end;  

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