Question

我有以下查询选择我需要的大部分信息：

SELECT cm.*, companies.company_name, companies.permalink,last_met.*,(cm.total_unique_visitors - last_met.last_UV)/last_met.last_UV * 100 as percent_change FROM calculated_metrics as cm
    LEFT JOIN companies ON companies.company_id = cm.company_id
    LEFT JOIN (SELECT company_id,total_unique_visitors as last_UV FROM calculated_metrics WHERE MONTH(date) = '04' AND YEAR(date) = '2011' GROUP BY company_id) last_met ON cm.company_id = last_met.company_id                         
    WHERE MONTH(cm.date) = '05' AND YEAR(cm.date) = '2011'
    AND cm.total_unique_visitors >3000
    AND cm.total_unique_visitors<9999999
    ORDER BY percent_change DESC

我现在被要求对数据进行更多排序。我需要按2个表（marketing_strategy和product_type）对数据进行排序。这些表都包含company_id和每个公司的多个记录的 实施例

marketing_strategy （表）
company_id marketing_strategy_option_id
605 25
605 9
604 21
604 9

product_type （表）
company_id product_type_option_id
605 12
605 13
604 13
604 3

使用这两个表和上面的查询进行排序的最佳方法是什么？我将为marketing_strategy选项和product_type选项提供逗号分隔的字符串。（例如marketing_strategy：25,9 product_type：13,3）

通过使用PHP然后只选择包含特定marketing_strategy和product_type id的公司，可以更容易地运行上面的循环查询吗？

我在这里不知所措。

Answer 1

我想我可能已回答了我自己的问题。阅读SO我找到了我要找的东西： Multiple Where conditions on same column
到目前为止，查询正在按预期工作。

SELECT cm.*, companies.company_name, companies.permalink,last_met.*,company_type_options_id,company_marketing_options_id,(cm.total_unique_visitors - last_met.last_UV)/last_met.last_UV * 100 as percent_change FROM calculated_metrics as cm
LEFT JOIN companies ON companies.company_id = cm.company_id
LEFT JOIN (SELECT company_id,total_unique_visitors as last_UV FROM calculated_metrics WHERE MONTH(date) = '4' AND YEAR(date) = '2011' GROUP BY company_id) last_met ON cm.company_id = last_met.company_id
LEFT JOIN company_marketing_strategy ON cm.company_id = company_marketing_strategy.company_id
LEFT JOIN company_type ON cm.company_id = company_type.company_id
WHERE MONTH(cm.date) = '05' AND YEAR(cm.date) = '2011'
AND company_marketing_options_id IN (25,21)
AND company_type_options_id IN (3)
AND cm.total_unique_visitors >3000
AND cm.total_unique_visitors<9999999999
GROUP BY cm.company_id
HAVING COUNT(DISTINCT company_marketing_options_id) = 2
AND COUNT(DISTINCT company_type_options_id) = 1
ORDER BY percent_change DESC

具有多个值的MySQL大型连接查询，其中值有帮助

1 个答案: