Question

我需要在MySQL表中实现搜索。它将数据存储在不同的行中，因此我使用MySQL中的数据透视功能来获取数据当我只需要搜索一个值时，它运行良好（表格结构如下）。

| id | lead_id | form_id | field_number | value   |
===================================================
| 1  |   12    |   12    |    2.3       | John    |
| 2  |   12    |   12    |    4.3       | Dublin  |
| 3  |   13    |   12    |    2.3       | Sam     |
| 4  |   13    |   12    |    4.3       | Cork    |
| 5  |   16    |   14    |    5         | 897894  |
| 16 |   16    |   16    |    7         | test    |
| 17 |   12    |   12    |    4.4       | Ireland |
| 18 |   12    |   12    |    7         | 8899899 |
| 19 |   13    |   12    |    4.4       | USA     |
| 20 |   13    |   12    |    7         | 0909902 |
--------------------------------------------------

我用来搜索的初始查询如下。当我只需要通过'name'

进行搜索时，它运行良好

SELECT lead_id, 
  MAX( IF( ROUND( `field_number` , 1 ) = '2.3', value, 0 ) ) AS "Name", 
  MAX( IF( ROUND( `field_number` , 1 ) = '4.3', value, 0 ) ) AS "City", 
  MAX( IF( ROUND( `field_number` , 1 ) = '4.4', value, 0 ) ) AS "State", 
  MAX( IF( ROUND( `field_number` , 1 ) = '7', value, 0 ) ) AS "SSnumber"
FROM details 
WHERE lead_id IN 
( 
  SELECT DISTINCT lead_id 
  FROM details 
  WHERE 
    (round(`field_number`,1) = '2.3' AND `value` LIKE '%s%') 
    AND form_id = 12 
)
GROUP BY `lead_id`

现在我需要实现一个过滤器来按城市，州和密码进行搜索所以我需要对此查询进行更改，但我没有让它正常工作我需要为搜索添加一个AND条件，按城市，州和密码进行过滤，就像这样。

SELECT lead_id, 
  MAX( IF( ROUND( `field_number` , 1 ) = '2.3', value, 0 ) ) AS "Name", 
  MAX( IF( ROUND( `field_number` , 1 ) = '4.3', value, 0 ) ) AS "City", 
  MAX( IF( ROUND( `field_number` , 1 ) = '4.4', value, 0 ) ) AS "State", 
  MAX( IF( ROUND( `field_number` , 1 ) = '7', value, 0 ) ) AS "SSnumber"
FROM details 
WHERE lead_id IN 
(
  SELECT DISTINCT lead_id 
  FROM details 
  WHERE 
  (
    (round(`field_number`,1) = '2.3' AND `value` LIKE '%s%') AND
    (round(`field_number`,1) = '4.3' AND `value` LIKE '%d%') AND
    (round(`field_number`,1) = '4.4' AND `value` LIKE '%r%') AND
  ) 
    AND form_id = 12 
)
GROUP BY `lead_id`

这不能用作存储在不同行中的数据。能否请你给我一个排序方法。

Answer 1

我不完全了解条件，但尝试使用子查询。例如 -

SELECT * FROM (
  SELECT
    lead_id,
    MAX(IF(ROUND(field_number, 1) = '2.3', value, 0)) AS 'Name',
    MAX(IF(ROUND(field_number, 1) = '4.3', value, 0)) AS 'City',
    MAX(IF(ROUND(field_number, 1) = '4.4', value, 0)) AS 'State',
    MAX(IF(ROUND(field_number, 1) = '7', value, 0)) AS 'SSnumber'
  FROM details
    WHERE form_id = 12
    GROUP BY lead_id
  ) d
WHERE 
  Name LIKE '%s%' AND City LIKE '%d%' AND State LIKE '%r%';

在mysql中使用pivot功能进行搜索

1 个答案: