两条求和sql语句相加

[Y青阳]

如何将这两条sql语句进行求和，求大神指点
或者如何将这两条语句合并成一条

[吉普赛的歌]

select sum(n) from (
    select sum(a.lhfgmjms) as n from jc_jbdcjzb a where ( a.trzldm='16' )
    union all
    select sum(b.lhfgmjms) as n from jc_fslddcjzb b where ( b.trzldm='16' )
) as t

[男哥不喝酒]

引用 1 楼 yenange 的回复:

select sum(n) from (
    select sum(a.lhfgmjms) as n from jc_jbdcjzb a where ( a.trzldm='16' )
    union all
    select sum(b.lhfgmjms) as n from jc_fslddcjzb b where ( b.trzldm='16' )
) as t

去重用union ，不去重用union all

[吉普赛的歌]

引用 2 楼 weixin_42177002 的回复:

[quote=引用 1 楼 yenange 的回复:]

select sum(n) from (
    select sum(a.lhfgmjms) as n from jc_jbdcjzb a where ( a.trzldm='16' )
    union all
    select sum(b.lhfgmjms) as n from jc_fslddcjzb b where ( b.trzldm='16' )
) as t

去重用union ，不去重用union all[/quote]
人家要求的是最后的总和，去重了还怎么求和？

[Y青阳]

引用 1 楼 yenange 的回复:

select sum(n) from (
    select sum(a.lhfgmjms) as n from jc_jbdcjzb a where ( a.trzldm='16' )
    union all
    select sum(b.lhfgmjms) as n from jc_fslddcjzb b where ( b.trzldm='16' )
) as t

谢谢啊 ，已采用了！