select
    a.品牌号,
    b.品牌名,
    count(c.品类号) as 品类号数量
from
    月销售统计表 a 
inner join
    品牌表 b on a.品牌号 = b.品牌号
inner join 
    品类表 c on a.品类号 = c.品类号
where 
    year(a.月份) = 2019 and b.品牌号 in (
        select 品牌号 
        from 月销售统计表 
        where year(月份) = 2019 
        group by 月份,品牌号 
        having sum(销售额) >= 10000
    )
group by 
    1,2
having count(c.品类号) >= 1