求sql汇总语句..高手请帮忙看看
表a
clbm,clmc
1 a
2 b
3 c


表b
clbma,clmca,clgg, jj, sj, flbm
545 a1 re 8.0 8.0 1
434 a2 re 15.2 8.0 1
676 a3 re 9.0 8.0 1
21 b4 re 9.0 8.0 2
54 b1 re 9.0 8.0 2
67 b2 as 9.0 8.0 2
54 c1 d 9.0 8.0 3
23 c2 vc 9.0 8.0 3
5 c3 fd 9.0 8.0 3
54 c4 fd 9.0 8.0 3


要得到的结果:
1 a
545 a1 re 8.0 8.0 1
434 a2 re 15.2 8.0 1
676 a3 re 9.0 8.0 1
2 b
21 b4 re 9.0 8.0 2
54 b1 re 9.0 8.0 2
67 b2 as 9.0 8.0 2
3 c
54 c1 d 9.0 8.0 3
23 c2 vc 9.0 8.0 3
5 c3 fd 9.0 8.0 3
54 c4 fd 9.0 8.0 3

[解决办法]
select * from(select clbm as clbma,clmc as clmca,clgg= ' ', jj= ' ', sj= ' ', flbm= ' ' from table1
union all
select * from table2)a
order by clmca

[解决办法]
select clbma,clmc,clmca,clgg, jj, sj, flbm from(select clbm as clbma,clmc as clmc, ' ' as clmca,clgg=NULL, jj=NULL, sj=NULL, flbm=NULL,0 as ord from table1
union all
select clbma, ' ',clmca,clgg, jj, sj, flbm,1 as ord from table2)a
order by ord,clmca