Users by Registration Year

This query is marked as a draft This query has been published by Polibil.

SQL

USE dewiki_p;


SELECT 
	SUM(IF(up_value = "male", 1, 0)) as male,
	SUM(IF(up_value = "female", 1, 0)) as female,
    SUM(IF(up_value != "male" AND up_value != "female", 1, 0)) as na,
    YEAR(user_registration) as Jahr
FROM (SELECT user_id, user_registration, up_value, up_property
	FROM user
      INNER JOIN user_properties ON up_user=user_id) AS joined
WHERE 
up_property = "gender"
GROUP BY YEAR(user_registration);

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