如何从一个表中连接两个长查询？

Question

我列

First name | last name | nr (individual number) | pref1 (preference1) | pref2 (preference2)| pref3(preference3) | situation | distance | sex 

与100只记录在一个表中AP

在所有我不能有冗余的结果。这意味着当第一组结果中我得到前面的例子'2112'的个体编号（列“nr”）时，它不能显示在最后一个结果中。从第一个查询

SELECT DISTINCT nr FROM ap 

记录：

WHERE sex='F' and pref1='1' ORDER BY situation DESC, distance DESC 
AND WHERE (sex='F' and pref2='1' and situation= ' ') ORDER BY distance DESC 
and WHERE (sex='F' and pref3='1' and situation= ' ') ORDER BY distance DESC 
LIMIT 4 

然后我想加盟，从第二个查询结果：

WHERE sex='M' and pref1='2' ORDER BY situation DESC, distance DESC 
AND WHERE (sex='M' and pref2='2' and situation= ' ') ORDER BY distance DESC 
AND WHERE (sex='M' and pref3='2' and situation= ' ') ORDER BY distance DESC 
LIMIT 7 

，然后加入从上次查询的所有记录：

WHERE sex='F' and pref1='3' ORDER BY situation DESC, distance DESC 
AND WHERE (sex='F' and pref2='3' and situation= ' ') ORDER BY distance DESC 
AND WHERE (sex='F' and pref3='3' and situation= ' ') ORDER BY distance DESC 
LIMIT 10 

是否有可能t做什么？

Answer 1

尝试使用UNION，它是使用UNION

Answer 2

SELECT DISTINCT nr FROM 
(select distinct nr from ap WHERE sex='F' and pref1='1' ORDER BY situation DESC, distance DESC Union 
select distinct nr from ap WHERE (sex='F' and pref2='1' and situation= ' ') ORDER BY distance DESC union 
select distinct nr from ap WHERE (sex='F' and pref3='1' and situation= ' ') ORDER BY distance DESC union 
LIMIT 4) 
UNION 
(select distinct nr from ap WHERE sex='M' and pref1='2' ORDER BY situation DESC, distance DESC union 
select distinct nr from ap WHERE (sex='M' and pref2='2' and situation= ' ') ORDER BY distance DESC union 
select distinct nr from ap WHERE (sex='M' and pref3='2' and situation= ' ') ORDER BY distance DESC union 
LIMIT 7 
) 
UNION 
(select distinct nr from ap WHERE sex='F' and pref1='3' ORDER BY situation DESC, distance DESC union 
select distinct nr from ap WHERE (sex='F' and pref2='3' and situation= ' ') ORDER BY distance DESC union 
select distinct nr from ap WHERE (sex='F' and pref3='3' and situation= ' ') ORDER BY distance DESC union 
LIMIT 10 
))