PHP和MySQL GROUP_CONCAT，带逗号分隔符，并用逗号搜索其中的位置 [英] Php and MySQL GROUP_CONCAT with separator comma and search where concat by comma

问题描述

是否可以在Group_concat中用逗号分隔来选择 并用逗号搜索其中的位置 这是我的mysql示例:

Is it that possible to select in Group_concat with separator comma and search where concat by comma Here My sample of mysql :

products_attributes_id  |products_id|   options_id|     options_values_id 
39                  |   31      |       3     |         3   
35                  |   30      |       2     |         2   
38                  |   30      |       1     |         1   
40                  |   31      |       2     |         2   
41                  |   30      |       1     |         4   
42                  |   30      |       1     |         5   
43                  |   31      |       1     |         4 

我要GROUP_CONCAT options_values_id

I want to GROUP_CONCAT options_values_id

SELECT *，GROUP_CONCAT(options_values_id SEPARATOR'，')从products_attributes GROUP by products_id

SELECT * , GROUP_CONCAT(options_values_id SEPARATOR ',') FROM products_attributes GROUP by products_id

products_attributes_id  |   products_id |   options_id  |   options_values_id   |   options_values_id
35                  |   30          |   2           |   2                   |   2,1,4,5
39                  |   31          |   3           |   3                   |   3,2,4

现在，我的问题是如何通过搜索(用逗号分隔的option_values_id)来查找product_id，如果我的值是1,2或2,4，那么我将只获得product_id = 30. 但是，如果我得到价值1,3，我将一无所获.因为product_id 30没有option_values_id 3 和product_id 31没有option_values_id 1.

Now my problem is How I will find the product_id by searching ( option_values_id with comma) if my value is 1,2 or 2,4 then I will get only product_id=30. But if I got value 1,3 I will get nothing. Because product_id 30 don't have option_values_id 3 and product_id 31 don't have option_values_id 1.

我尝试使用此代码，但无法获得product_id

I try this code but I can't get the product_id

    SELECT * , GROUP_CONCAT( options_values_id
SEPARATOR ',' )
FROM `products_attributes` WHERE CONCAT(',',options_values_id,',') LIKE '%,1,2,%'
GROUP BY products_id

推荐答案

尝试一下:

SELECT 
    products_id , 
    GROUP_CONCAT(options_values_id SEPARATOR ',') as ops 
FROM 
    products_attributes 
GROUP by 
    products_id
HAVING
    FIND_IN_SET('1',ops)
    OR FIND_IN_SET('3',ops)

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