用于混合搜索词和f.e的SQL查询。卖得最多

Question

嗨，我在寻找一个想法来混合搜索结果(对于jQuery自动完成)，过滤由id，搜索-word和大多数销售。我有一个"products“表，其中有以下列："id，name，.，sql”，这里是我的sql

    SELECT * FROM products
    WHERE 
        state=1 
        AND ( 
            id='$search' OR id LIKE '$search%' OR  id LIKE '%$search%' OR 
            name='$search' OR name LIKE '$search%' OR name LIKE '%$search%' 
            ) 
        ORDER BY ???

在这个查询中是“出售(出售-项目)”不包括在内。我也在寻找将它合并到我的查询中的方法。我需要这份订单

1. full id (e.g. sombody types 312 than the first row must be id=312)
2. full name (...)
3. otherwise search-pattern combined with "sold"

Answer 1

你可以做这样的事

SELECT p.*, 
       MAX(3 * (id = '$search' OR id LIKE '%$search%'),
           2 * (name LIKE '%312%'),
           1 * (sold LIKE '%312%')) rank 
  FROM products p
 WHERE state = 1 
   AND (id = '$search' OR id LIKE '%$search%'
    OR name LIKE '%$search%'
    OR sold LIKE '%$search%')
 ORDER BY rank DESC

这是SQLFiddle演示