sql with as union all

 WITH RPL (FId,Fname,Forder) AS
 (
 SELECT ment.deptno,ment.deptname,ment.orderno
 FROM JTERP..fg_department ment
 WHERE ment.deptno in (
 select mdept_mid from dbo.pl_managedept where mdept_usernum='' and mdept_usercomid=''
 ) and ment.ocode=''
 UNION ALL
 select part.deptno,part.deptname,part.orderno from
 RPL as  PARENT,JTERP..fg_department as part
 where PARENT.FId=part.dept_fa and part.ocode=''
 )
 --SELECT FId,Fname,Forder FROM RPL;
 select  replace((select '{logid:"'+ se.logid+'" , u_name:"' +se.u_name+'" , deptname:"'+ dept.deptname+'" , num:"'+convert(varchar(10) ,row_number() over(order by se.logid asc ))+'"},'
 from JTERP..secuser as se inner join JTERP..fg_user_actor as fg
 on se.logid=fg.logid
 inner join JTERP..fg_department as dept
 on fg.deptno=dept.deptno and fg.ocode=dept.ocode where    isnull(lg_sign,1)<>0 and fg.deptno in(
 SELECT DISTINCT  FId
 FROM RPL
 )  order by se.logid asc
 for xml path('')),'⒈','');