Question

这有点简单，但不是同时。

我有一个用户输入名称的基本搜索框。仅包含first_name和last_name的名称。该表包含first_name，last_name，display_name列，其中firs_name和last_name显然是名字和姓氏，display_name是first_name和last_name的串联或首选名称，因此William Smith的显示名称可能为Bill Smith。

古怪：

名字和姓氏都可以是双姓。我的意思是我们可能有一个像

这样的名字

First Name: Anna Maria    Last Name: Smith
First Name: Anna          Last Name: Bo Johnson
First Name: Anna Maria    Last Name: Bo Johnson.

如此最佳情况，名称为Anna Smith，但我已经有足够的最坏情况Anna Maria Bo Johnson来完成此操作。

当用户搜索Anna Maria Bo Johnson时，我需要运行一个不知道4＆＃34;中的哪一个＆＃34;是名字的第一个或最后一个名字，遗憾的是，双首名双姓有84个组合，如Anna Bo Maria Johnson或Bo Maria Johnson Anna等......

现在我的问题是，我不希望我的MySQL查询长度为84行：（3个字名示例）

SELECT * FROM tablename a
WHERE
    (a.first_name = '$search_term[0]' AND a.last_name = '$search_term[1]') OR      
    (a.first_name = '$search_term[0]' AND a.last_name = '$search_term[2]') OR         
    (a.first_name = '$search_term[0]' AND a.last_name = '$search_term[1] $search_term[2]') OR
    (a.first_name = '$search_term[0]' AND a.last_name = '$search_term[2] $search_term[1]') OR
    (a.first_name = '$search_term[1]' AND a.last_name = '$search_term[0]') OR
    (a.first_name = '$search_term[1]' AND a.last_name = '$search_term[1]') OR     
    (a.first_name = '$search_term[1]' AND a.last_name = '$search_term[0] $search_term[2]') OR
    (a.first_name = '$search_term[1]' AND a.last_name = '$search_term[2] $search_term[0]') OR
    (a.first_name = '$search_term[2]' AND a.last_name = '$search_term[0]') OR
    (a.first_name = '$search_term[2]' AND a.last_name = '$search_term[1]') OR
    (a.first_name = '$search_term[2]' AND a.last_name = '$search_term[0] $search_term[1]') OR
    (a.first_name = '$search_term[2]' AND a.last_name = '$search_term[1] $search_term[0]') OR
    (a.first_name = '$search_term[0] $search_term[1]' AND a.last_name = '$search_term[2]') OR
    (a.first_name = '$search_term[1] $search_term[0]' AND a.last_name = '$search_term[2]') OR
    (a.first_name = '$search_term[0] $search_term[2]' AND a.last_name = '$search_term[1]') OR
    (a.first_name = '$search_term[2] $search_term[0]' AND a.last_name = '$search_term[1]') OR
    (a.first_name = '$search_term[1] $search_term[2]' AND a.last_name = '$search_term[0]') OR
    (a.first_name = '$search_term[2] $search_term[1]' AND a.last_name = '$search_term[0]') OR
    a.display_name = '$search_term[0] $search_term[1] $search_term[2]' OR
    a.display_name = '$search_term[1] $search_term[2] $search_term[0]' OR
    a.display_name = '$search_term[2] $search_term[1] $search_term[0]'
ORDER BY last_name, first_name ASC

那么将这个查询写出来的快速而有效的方法是什么。基本上我需要将（=）每个单词与随机单个单词或2个单词组合的组中的所有字段进行比较。

提前感谢您的帮助！

Answer 1

使用IN声明：

SELECT * 
FROM tablename a 
WHERE concat_ws(' ',a.first_name,a.last_name) IN ('John Smith','Samantha Rose')

Answer 2

我对你想要匹配的东西感到有点困惑。看看你的查询，看起来你和Maria Bo Johnson甚至Bo Anna都匹敌。那是为了吗？

如果是这样，你能做到吗

SELECT * FROM tablename a WHERE
(a.first_name = '$search_term[0]' OR a.first_name = '$search_term[1]' OR
a.first_name = '$search_term[2]' OR a.first_name = '$search_term[3]')
AND
(a.last_name = '$search_term[0]' OR a.last_name = '$search_term[1]' OR
a.last_name = '$search_term[2]' OR a.last_name = '$search_term[3]')

（可能添加了first_name！= last_name的检查...）

Answer 3

不要爆炸，但要在mysql中连接

where concat(a.first_name, ' ', a.last_name) = '$search_terms' or a.display_name = '$search_terms'

如果输入可能只是名称的一部分，则使用LIKE：

where concat(a.first_name, ' ', a.last_name) LIKE '%$search_terms%' or a.display_name LIKE '%$search_terms%'

编辑如果您担心人们有时会以姓氏开头，有时会使用名字，再添加一个条件：

where concat(a.first_name, ' ', a.last_name) = '$search_terms' or concat(a.last_name, ' ', a.first_name) = '$search_terms' or a.display_name = '$search_terms'

试图缩短其他loooong查询

3 个答案: