泛微oa流程表单之递归顶级部门

with topdp(id,supdepid,departmentmark,orgid) as (
  select id,a.supdepid,a.departmentmark,id as orgid
      from hrmdepartment a
  union all
  select a.id,a.supdepid,a.departmentmark,b.orgid 
  from hrmdepartment a inner join topdp b on a.id = b.supdepid
)
select orgid,id as topid from topdp where  supdepid=0

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