select * from (
select x.qssj,x.zzsj,x.xmlx
from ejdw e, xiangMu x, xiangMu_ejdw_table xet
where e.id = xet.ejdw_id
and x.id = xet.xiangMu_id
) tt
select x.qssj,x.zzsj,x.xmlx
from ejdw e, xiangMu x, xiangMu_ejdw_table xet
where e.id = xet.ejdw_id
and x.id = xet.xiangMu_id
) tt
select x.qssj,x.zzsj,x.xmlx from ejdw e, xiangMu x, xiangMu_ejdw_table xet where e.id = xet.ejdw_id and x.id = xet.xiangMu_id)a