SQL用户搜索查询

Question

我想创建查询来搜索表users给定信息。 该表包括： id ， username ， firstname ， lastname ， phone和email 。

示例搜索文本： mat h 50 @ld

应该返回的唯一记录： 1 | admin | mat | hladeo | 123450789 | admin@localhost 1 | admin | mat | hladeo | 123450789 | admin@localhost

我的查询：

SELECT * FROM  `users` WHERE (
(`firstname` LIKE  '%mat%') || (`firstname` LIKE  '%h%') ||
(`firstname` LIKE  '%50%') || (`firstname` LIKE  '%@l%') ||
(`firstname` LIKE  '%d%')
) && (
(`lastname` LIKE  '%mat%') || (`lastname` LIKE  '%h%') ||
(`lastname` LIKE  '%50%') || (`lastname` LIKE  '%@l%') ||
(`lastname` LIKE  '%d%')
) && (
(`phone` LIKE  '%mat%') || (`phone` LIKE  '%h%' ) ||
(`phone` LIKE  '%50%') || (`phone` LIKE  '%@l%') ||
(`phone` LIKE  '%d%')
) && (
(`email` LIKE  '%mat%') || (`email` LIKE  '%h%') ||
(`email` LIKE  '%50%' ) || (`email` LIKE  '%@l%') ||
(`email` LIKE  '%d%')
) && (
(`username` LIKE  '%mat%') || (`username` LIKE  '%h%') ||
(`username` LIKE  '%50%') || (`username` LIKE  '%@l%') ||
(`username` LIKE  '%d%')
) 

但是此查询返回的用户名包含d且电话号码包含50 。

编辑：
该查询返回3行：

1 | admin | mat | hladeo | 123450789 | admin@localhost
8 | dillese | Adriana | Zolch | 44450232 | dilesse@msn.com
12 | dcolhut | Denise | Colhut | 502222222 | dcolhut@msn.com

并且应该仅返回第一行（因为匹配所有要求）。

==========

还有一个主要问题-如何优化此查询？ 有可能使其更简单吗？

问候

Answer 1

我认为应该这样做：

SELECT * FROM  `users` WHERE (
       (firstname LIKE '%mat%' OR lastname LIKE '%mat%' OR
        phone LIKE '%mat%' OR email LIKE '%mat%' OR username LIKE '%mat%')
       AND
       (firstname LIKE '%h%' OR lastname LIKE '%h%' OR
        phone LIKE '%h%' OR email LIKE '%h%' OR username LIKE '%h%')
       AND
       (firstname LIKE '%50%' OR lastname LIKE '%50%' OR
        phone LIKE '%50%' OR email LIKE '%50%' OR username LIKE '%50%')
       AND
       (firstname LIKE '%@l%' OR lastname LIKE '%@l%' OR
        phone LIKE '%@l%' OR email LIKE '%@l%' OR username LIKE '%@l%')
       AND
       (firstname LIKE '%d%' OR lastname LIKE '%d%' OR
        phone LIKE '%d%' OR email LIKE '%d%' OR username LIKE '%d%')
      )

您需要分别测试每个条件，而不是每个字段。