php - mysql 是否可以将多次查询的结果混合输出?

Question

1比如,我要价格在20-30 50-60 70-80 价格区间的商品,关系为or
2同时标题要包含裙子,上衣,外套关系为or,
3还要排除标题包含童装,书籍,关系为and,

3个结果合并以id排序,然后取出数据.
这样的语句应该怎么写呀?

Answer 1

select * from tb_name where

      (
         (price between 20 and 30) or 
         (price between 50 and 60) or 
         (price between 70 and 80)
      ) and 
      (
         (title='裙子' or title='上衣' or title='外套') and 
         (title<>'童装' or title<>'书籍')
      ) 

order by id asc;

Answer 2

（价格区间1 or 价格区间2 or 价格区间3） and (标题1 or 标题2 or 标题3) and (标题 not in(....)) order by id