SQL查询过滤建议

时间:2012-04-24 08:48:15

标签: mysql sql doctrine

我不确定我想要做什么是可能的,但我一直在尝试采用不同的方法来解决我需要的问题,但到目前为止,我已经空手而归。

让我们说我有2张桌子(只是一个例子,在我的情况下,还有更多的内容+更多的数据)

一个称为客户端,另一个称为form_data。 我们在clients表中有多个客户端,在form_data表中,我们为clients表中的每个公司提供了多行。在form_data中,我们存储来自不同表单的序列化数据。 (身份证和数据)

我正在从form_data表中提取所有记录,我正在尝试在数据列上使用正则表达式来过滤,例如在其中找到值'motor oil'。

我想要一种方法来做这个过滤器,但过滤公司而不是表格..所以我想找到其中有“机油”的表格,并删除没有这个的公司的所有条目匹配,但我希望保留所有匹配公司的表格。

我可以发布我的查询,但它相当长,我认为如果我们能够解决上述问题,那么我应该将其实现到实际查询中。

此致

编辑:

SELECT f.form_question_has_answer_id AS f__form_question_has_answer_id, f.form_question_has_answer_request AS f__form_question_has_answer_request, 
f.form_question_has_answer_form_id AS f__form_question_has_answer_form_id, f.form_question_has_answer_user_id AS f__form_question_has_answer_user_id, 
p.project_company_has_user_id AS p__project_company_has_user_id, p.project_company_has_user_project_id AS p__project_company_has_user_project_id, 
p.project_company_has_user_user_id AS p__project_company_has_user_user_id, c.company_id AS c__company_id, c.company_hall_no AS c__company_hall_no, 
c.company_type AS c__company_type, c.company_company_name AS c__company_company_name, c.company_country AS c__company_country, 
c.company_stand_number AS c__company_stand_number, c.company_image_file_1 AS c__company_image_file_1, p2.project_id AS p2__project_id, 
p2.project_name AS p2__project_name, u.user_id AS u__user_id, u.user_username AS u__user_username, f2.form_id AS f2__form_id 
FROM form_question_has_answer f 
INNER JOIN project_company_has_user p ON f.form_question_has_answer_user_id = p.project_company_has_user_user_id 
INNER JOIN company c ON p.project_company_has_user_company_id = c.company_id 
INNER JOIN project p2 ON p.project_company_has_user_project_id = p2.project_id 
INNER JOIN user u ON p.project_company_has_user_user_id = u.user_id 
INNER JOIN form f2 ON p.project_company_has_user_project_id = f2.form_project_id 
WHERE f.form_question_has_answer_id IN ('19262', '21560', '23088', '22660', '14772', '18495', '18720', '21625', '19957', '20943') 
AND ((f2.form_template_name = "custom" AND p.project_company_has_user_garbage_collection = 0 AND p.project_company_has_user_project_id = 29) AND f.form_question_has_answer_request REGEXP 'item-cadcae') 
ORDER BY company_company_name asc

查询来自学说查询。

编辑: 如果我在form_data表中有一个包含10个表格的公司,如果我按“机油”过滤,则该公司的所有没有机油的表格都会被删除..所以,如果公司ID 144的10个表格中只有1个具有单词机油然后其他9种形式在查询中丢失..我想保留它们。我想要的是任何没有找到任何形式的公司(机油)将所有表格从搜索中移除。

4 个答案:

答案 0 :(得分:1)

SELECT
    c.*
FROM 
    clients as c
    INNER JOIN (
        select 
            *
        from 
            forms
        where 
            sometext like '%motor oil%'
        ) as f
        ON f.client = c.id

http://sqlfiddle.com/#!3/5b616/1

在这一部分:

select 
    *
from 
      forms
where 
      sometext like '%motor oil%'

您可以使用适当的过滤器从表单表中选择任何选择相关行的查询。

你也可以使用左外连接进行反转,其中null技术..虽然在这种情况下修改子查询以返回不同客户端的列表,但可能会给你更像你期望的结果:

SELECT
    c.*
FROM 
    clients as c
    LEFT OUTER JOIN (
        select 
            distinct 
                client
        from 
            forms
        where 
            sometext like '%motor oil%'
        ) as f
        ON f.client = c.id
where f.client is null

http://sqlfiddle.com/#!3/5b616/4

所以您的查询类似于:

SELECT
    c.*
FROM 
    company AS c 
    INNER JOIN (
                SELECT 
                    DISTINCT c.company_id 
                FROM 
                    form_question_has_answer f 
                    INNER JOIN project_company_has_user p 
                        ON f.form_question_has_answer_user_id = p.project_company_has_user_user_id 
                    INNER JOIN company c 
                        ON p.project_company_has_user_company_id = c.company_id 
                    INNER JOIN project p2 
                        ON p.project_company_has_user_project_id = p2.project_id 
                    INNER JOIN user u 
                        ON p.project_company_has_user_user_id = u.user_id 
                    INNER JOIN form f2 
                        ON p.project_company_has_user_project_id = f2.form_project_id 
                WHERE 
                    f.form_question_has_answer_id IN ('19262', '21560', '23088', '22660', '14772', '18495', '18720', '21625', '19957', '20943') 
                    AND ((f2.form_template_name = "custom" 
                    AND p.project_company_has_user_garbage_collection = 0 
                    AND p.project_company_has_user_project_id = 29) 
                    AND f.form_question_has_answer_request REGEXP 'item-cadcae') 
                ORDER BY company_company_name asc
            ) as f
                ON f.company_id= c.id

答案 1 :(得分:1)

至少有一个与搜索匹配的表单的所有客户的所有表单数据:

SELECT * FROM `form_data`
WHERE `clientid` IN (
  SELECT DISTINCT `clientid` FROM `form_data`
  WHERE `data` RLIKE '[[:<:]]motor oil[[:>:]]'
);

答案 2 :(得分:0)

不确定通过为匹配的公司保留所有表单是什么意思? 不只是在这... ...

select * from clients inner join form_data on clients.id = form_data.id where form_data.[data] like '%motor  oil%'

答案 3 :(得分:0)

这将返回所有带有“机油”的表格,其中包含名称中含有“机油”的公司:

SELECT  *
FROM    clients c
JOIN    form_data fd
ON      fd.client = c.id
WHERE   fd.data RLIKE '[[:<:]]motor oil[[:>:]]'
        AND c.name RLIKE '[[:<:]]motor oil[[:>:]]'