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我有一个查询,它返回一个日期范围内每天创建的帐户数。它看起来像这样:

SELECT COUNT(a.id), DATE(a.created_date) AS eventDate FROM accounts a WHERE created_date BETWEEN '2007-1-1' AND '2012-10-10' GROUP BY eventDate

它返回如下内容:

   count || eventDate
    1    ||  2011-04-27
    2    ||  2011-04-29
    1    ||  2011-05-05
    4    ||  2011-06-09
    1    ||  2011-08-08
    ...etc

但是,我想在没有创建帐户的日期获得 0,因此结果如下所示:

    count || eventDate
    1    ||  2011-04-27
    0    ||  2011-04-28
    2    ||  2011-04-29
    0    ||  2011-04-30
    etc.

如何使用 MySQL 查询来做到这一点?

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