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我有这两个查询

select 
    count(1),
    female.first_name,
    female.last_name,
    male.first_name,
    male.last_name
from
    new_person as male
        left join
    new_person as female ON male.spouse_id = female.id
where
    male.spouse_id <> '0'
group by female.first_name , female.last_name , male.first_name , male.last_name;

第二个 1 看起来像这样

    select 
    male.first_name as fnf,
    male.last_name as lnf,
    female.first_name as fnm,
    female.last_name as lnm
from
    new_person as p1
        left join
    new_person as male ON p1.father_id = male.id
        left join
    new_person as female ON p1.mother_id = female.id
where
    p1.last_name <> ''
        and p1.last_name <> 'N.N.'
        and ((male.last_name <> ''
        and male.last_name <> 'N.N.')
        or (female.last_name <> ''
        and female.last_name <> 'N.N.'))

现在我想将这些组合起来喜欢其中 maleq1.name = maleq2.name 和 femaleq1.name = femaleq2 然后在 q1 和 q2 中播种男性和女性的 id

名字我的意思是名字和姓氏

4

1 回答 1

1

这是我的建议：查看每个查询。然后使用您的两个视图编写第三个查询。

但是，您的第一个查询是多条记录的聚合/汇总/任何内容。使用 id 向查询中添加新字段

CREATE VIEW q1 AS
select 
    count(1),
    female.first_name,
    female.last_name,
    male.first_name,
    male.last_name,
    GROUP_CONCAT(male.id),
    GROUP_CONCAT(female.id)
from
    new_person as male
        left join
    new_person as female ON male.spouse_id = female.id
where
    male.spouse_id <> '0'
group by female.first_name , female.last_name , male.first_name , male.last_name;

然后你的第二个查询

CREATE VIEW q2 AS
select 
    male.first_name as fnf,
    male.last_name as lnf,
    female.first_name as fnm,
    female.last_name as lnm,
    male.id AS male_id,
   female.id as female_id
from
    new_person as p1
        left join
    new_person as male ON p1.father_id = male.id
        left join
    new_person as female ON p1.mother_id = female.id
where
    p1.last_name <> ''
        and p1.last_name <> 'N.N.'
        and ((male.last_name <> ''
        and male.last_name <> 'N.N.')
        or (female.last_name <> ''
        and female.last_name <> 'N.N.'))

将这些用于第三个查询

于 2013-10-12T16:17:21.147 回答