SQL用戶搜索查詢

Question

我想創建查詢來搜索表users給定信息。 該表包括： id ， username ， firstname ， lastname ， phone和email 。

示例搜索文本： mat h 50 @ld

應該返回的唯一記錄： 1 | admin | mat | hladeo | 123450789 | admin@localhost 1 | admin | mat | hladeo | 123450789 | admin@localhost

我的查詢：

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%')
) 

但是此查詢返回的用戶名包含d且電話號碼包含50 。

編輯：
該查詢返回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

並且應該僅返回第一行（因為匹配所有要求）。

==========

還有一個主要問題-如何優化此查詢？ 有可能使其更簡單嗎？

問候

Answer 1

我認為應該這樣做：

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%')
      )

您需要分別測試每個條件，而不是每個字段。