mysql - 用于在 Highcharts 图表上显示记录的 SQL 查询

Question

我正在努力实现动态 Highcharts 图 - 基本列，我需要帮助在 MySQL 中制作 SQL。我需要最近 12 个月的结果(不管该月的任何数据(它可以是 0 – 但应该获取所有 12 个月的记录))从当月显示有多少成员(4 种类型的用户)在特定月份的网站。

有四种类型的用户:

1. 代理
2. 个人
3. build 者
4. 房地产公司

对于月份列，它应该检索当前月份的最后 12 个月 - 八月、九月、十月、十一月、十二月、一月、二月、三月、四月、五月、六月、七月。

我试过以下查询:

SELECT
CASE WHEN u.`userTypeID`=1 THEN COUNT(`userTypeID`) ELSE 0 END AS agent,
CASE WHEN u.`userTypeID`=2 THEN COUNT(`userTypeID`) ELSE 0 END AS individuals,
CASE WHEN u.`userTypeID`=3 THEN COUNT(`userTypeID`) ELSE 0 END AS builders,
CASE WHEN u.`userTypeID`=4 THEN COUNT(`userTypeID`) ELSE 0 END AS real_estate_companies,
 u.`userRegistredDate` AS 'timestamp'
FROM `dp_users` AS u
LEFT JOIN `dp_user_types` AS ut ON u.`userTypeID` = ut.`type_id`
WHERE u.`userRegistredDate` < Now( )
AND u.`userRegistredDate` > DATE_ADD( Now( ) , INTERVAL -12 MONTH )
GROUP BY DATE_FORMAT( u.`userRegistredDate`, '%b' )

输出(不正确):

| AGENT | INDIVIDUALS | BUILDERS | REAL_ESTATE_COMPANIES |                   TIMESTAMP |
----------------------------------------------------------------------------------------
|     0 |           0 |        9 |                     0 | July, 01 2013 17:14:35+0000 |
|     3 |           0 |        0 |                     0 |  May, 15 2013 14:14:26+0000 |

输出(要求:正确):

| AGENT | INDIVIDUALS | BUILDERS | REAL_ESTATE_COMPANIES |                   TIMESTAMP |
----------------------------------------------------------------------------------------
|     3 |           2 |        2 |                     2 | July, 01 2013 17:14:35+0000 |
|     1 |           2 |        0 |                     0 |  May, 15 2013 14:14:26+0000 |

我尝试的另一种方法是使用子查询，请在下面找到两个示例链接:

http://sqlfiddle.com/#!2/ed101/53 http://sqlfiddle.com/#!2/ed101/54

希望找到有利的解决方案，谢谢。

Answer 1

试试这个

    SELECT month(u.`userRegistredDate`),
sum(CASE WHEN u.`userTypeID`=1 THEN 1 ELSE 0 END) AS agent,
sum(CASE WHEN u.`userTypeID`=2 THEN 1 ELSE 0 END) AS individuals,
sum(CASE WHEN u.`userTypeID`=3 THEN 1 ELSE 0 END) AS builders,
sum(CASE WHEN u.`userTypeID`=4 THEN 1 ELSE 0 END) AS real_estate_companies,
 u.`userRegistredDate` AS 'timestamp',m.month
FROM (
SELECT 'January' AS
MONTH
UNION SELECT 'February' AS
MONTH
UNION SELECT 'March' AS
MONTH
UNION SELECT 'April' AS
MONTH
UNION SELECT 'May' AS
MONTH
UNION SELECT 'June' AS
MONTH
UNION SELECT 'July' AS
MONTH
UNION SELECT 'August' AS
MONTH
UNION SELECT 'September' AS
MONTH
UNION SELECT 'October' AS
MONTH
UNION SELECT 'November' AS
MONTH
UNION SELECT 'December' AS
MONTH
) AS m
left join `dp_users` AS u  ON m.month = MONTHNAME(u.`userRegistredDate`) and u.`userRegistredDate` < Now( )
AND u.`userRegistredDate` > DATE_ADD( Now( ) , INTERVAL -12 MONTH )
LEFT JOIN `dp_user_types` AS ut ON u.`userTypeID` = ut.`type_id`

GROUP BY  m.month
order by FIELD(m.month,'July','August','September','October','November','December','January','February','March','April','May','June')

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