Mysql查询返回的记录数大于返回的行数，我需要所有行

您可以尝试上面的查询

希望这对你有帮助。

明白了吗

从中选择t、t2

挑选

    SELECT *
FROM
    (SELECT 
        SUM(calls) t, NULL t2
    FROM
        (SELECT 
        COUNT(DISTINCT callid_app) AS calls, parent_id AS area_id
    FROM
        fp_data AS f
    INNER JOIN data_entities AS d ON d.unique_id = f.from_branch
    WHERE
        f.type = 'Ext/In'
            AND (date_time BETWEEN '2017-05-08 00:00:00' AND '2017-05-09 23:59:59')
            AND (WEEKDAY(date_time) <= 4)
            AND (HOUR(date_time) BETWEEN 9 AND 16)
            AND d.parent_id IN (6 , 13, 21, 27)
            AND ignore_call != 1
            AND d.unique_id > 0
    GROUP BY d.unique_id) AS total_calls
    GROUP BY area_id 
    UNION ALL 
    SELECT 
        NULL t, SUM(calls) t2
    FROM
        (SELECT 
        COUNT(DISTINCT callid_app) AS calls, parent_id AS col
    FROM
        fp_data AS f
    INNER JOIN data_entities AS d ON d.unique_id = f.from_branch
    WHERE
        f.type = 'Ext/In'
            AND (date_time BETWEEN '2017-05-08 00:00:00' AND '2017-05-09 23:59:59')
            AND (WEEKDAY(date_time) <= 4)
            AND (HOUR(date_time) BETWEEN 9 AND 16)
            AND d.parent_id IN (6 , 13, 21, 27)
            AND seg_other_value = '1'
            AND start_reason = '[New Call]'
            AND d.unique_id > 0
    GROUP BY unique_id) AS calls
    GROUP BY col)z

---

我甚至看不懂你的疑问。请通过在每行代码中添加四个空格来设置格式。关于错误，这是不言而喻的：您的选择列表中有一个子查询返回多个值，这是没有意义的。那么，如果我想要全部四行，那么解决方案是什么呢？你能提供示例数据和预期结果吗？@P.salmon：请再次检查问题块我已经在结果中添加了我期望的内容。你能提供示例数据吗？面临相同的错误：子查询返回超过1行可以管理派生表别名，但它结果像t一样显示，t2总共有8行，而t列有4行数据，t2有空数据，接下来的4行t有空数据，t2有数据是的，但这正是你们想要的？t，t2 94，56 42 43 15 76 75 78

         t, t2
         94, 56
         42  43
         15  76
         75  78

    SELECT *
FROM
    (SELECT 
        SUM(calls) t, NULL t2
    FROM
        (SELECT 
        COUNT(DISTINCT callid_app) AS calls, parent_id AS area_id
    FROM
        fp_data AS f
    INNER JOIN data_entities AS d ON d.unique_id = f.from_branch
    WHERE
        f.type = 'Ext/In'
            AND (date_time BETWEEN '2017-05-08 00:00:00' AND '2017-05-09 23:59:59')
            AND (WEEKDAY(date_time) <= 4)
            AND (HOUR(date_time) BETWEEN 9 AND 16)
            AND d.parent_id IN (6 , 13, 21, 27)
            AND ignore_call != 1
            AND d.unique_id > 0
    GROUP BY d.unique_id) AS total_calls
    GROUP BY area_id 
    UNION ALL 
    SELECT 
        NULL t, SUM(calls) t2
    FROM
        (SELECT 
        COUNT(DISTINCT callid_app) AS calls, parent_id AS col
    FROM
        fp_data AS f
    INNER JOIN data_entities AS d ON d.unique_id = f.from_branch
    WHERE
        f.type = 'Ext/In'
            AND (date_time BETWEEN '2017-05-08 00:00:00' AND '2017-05-09 23:59:59')
            AND (WEEKDAY(date_time) <= 4)
            AND (HOUR(date_time) BETWEEN 9 AND 16)
            AND d.parent_id IN (6 , 13, 21, 27)
            AND seg_other_value = '1'
            AND start_reason = '[New Call]'
            AND d.unique_id > 0
    GROUP BY unique_id) AS calls
    GROUP BY col)z

    SUM(calls) t, area_id
FROM
    (SELECT 
    COUNT(DISTINCT callid_app) AS calls, parent_id AS area_id
FROM
    fp_data AS f
INNER JOIN data_entities AS d ON d.unique_id = f.from_branch
WHERE
    f.type = 'Ext/In'
        AND (date_time BETWEEN '2017-05-08 00:00:00' AND '2017-05-09 23:59:59')
        AND (WEEKDAY(date_time) <= 4)
        AND (HOUR(date_time) BETWEEN 9 AND 16)
        AND d.parent_id IN (6 , 13, 21, 27)
        AND ignore_call != 1
        AND d.unique_id > 0
GROUP BY d.unique_id) AS total_calls
GROUP BY area_id) as total_calls inner join 
(SELECT 
    area_id, SUM(calls) t2
FROM
    (SELECT 
    COUNT(DISTINCT callid_app) AS calls, parent_id AS area_id
FROM
    fp_data AS f
INNER JOIN data_entities AS d ON d.unique_id = f.from_branch
WHERE
    f.type = 'Ext/In'
        AND (date_time BETWEEN '2017-05-08 00:00:00' AND '2017-05-09 23:59:59')
        AND (WEEKDAY(date_time) <= 4)
        AND (HOUR(date_time) BETWEEN 9 AND 16)
        AND d.parent_id IN (6 , 13, 21, 27)
        AND seg_other_value = '1'
        AND start_reason = '[New Call]'
        AND d.unique_id > 0
GROUP BY unique_id) AS calls
GROUP BY area_id) as branch_total_calls on total_calls.area_id=branch_total_calls.area_id