复杂的SQL查询辅助wordpress

Question

我必须从其他两个表添加两个条件到此查询，但我不知道如何做到这一点。

SELECT SQL_CALC_FOUND_ROWS * FROM wp_posts  WHERE 1=1  AND ( (
                SELECT COUNT(1)
                FROM wp_term_relationships
                WHERE term_taxonomy_id IN (2,3)
                AND object_id = wp_posts.ID
                ) = 2 ) AND wp_posts.post_type = 'packages' AND (wp_posts.post_status = 'publish' OR wp_posts.post_status = 'private') GROUP BY wp_posts.ID ORDER BY wp_posts.post_date DESC LIMIT 0, 10

其他表:

表1 (name:packages_dates)有三个字段:post_id date_from(日期),date_to(日期)

表2 (name:packages_price)有两个字段:post_id,price(numeric)

的条件是:

我有一个日期输入，必须介于

中的date_from和date_to之间

表1

;

第二个输入是一个price范围，必须在

中包含price

表2

;

谢谢

Answer 1

如果您的数据库允许内部连接，那么在我看来应该这样工作:

SELECT SQL_CALC_FOUND_ROWS * FROM wp_posts inner join packages_dates on wp_posts.ID=packages_dates.post_id inner join packages_price on wp_posts.ID=packages_price.post_id WHERE 1=1  AND ( (
            SELECT COUNT(1)
            FROM wp_term_relationships
            WHERE term_taxonomy_id IN (2,3)
            AND object_id = wp_posts.ID
            ) = 2 ) AND wp_posts.post_type = 'packages' AND (wp_posts.post_status = 'publish' OR wp_posts.post_status = 'private') AND packages_dates.date_from >=DateInput and packages_dates.date_to<=DateInput and packages_price between InputLowRange and InputHighRange GROUP BY wp_posts.ID ORDER BY wp_posts.post_date DESC LIMIT 0, 10