我遇到了正在运行的加入查询的问题。出于某种原因，我只返回59,596行而不是68,058行。
我尝试了各种LEFT / RIGHT / INNER JOINS但没有运气。我有双重检查表CC，可以确认指定范围有68,059行数据。但是，派生表XX的行数较少。
我想返回表CC中的所有行，尽管该行是否在表XX中。
以下是我正在使用的查询以及表结构：
SELECT
CC.entity_code 'Entity Code 2'
, (SELECT MAX(action_date) AS secMaxDate
FROM
sys_reference.entities_visited DD
WHERE
entity_code = XX.storeCode
AND action_date < XX.maxDate) ' Previous Visit Date'
, XX.maxDate 'Latest Visit Date'
, cycle_end_date 'Cycle End Date'
, WEEK(cycle_end_date,1) 'Cycle Week'
, CASE
WHEN XX.visits > 10 THEN 0
ELSE XX.visits
END 'Total Visits (28 Days)'
, CASE
WHEN XX.maxDate = MAX(CC.action_date) THEN 1
ELSE 0
END AS 'Call Cycle Compliance'
FROM
sys_reference.call_cycles CC
LEFT JOIN
(SELECT
BB.entity_code AS storeCode
, MAX(action_date) AS maxDate
, MAX(cycle_end_date) AS cycle_end_date
, (SELECT COUNT(AA.entity_code) FROM sys_reference.entities_visited AA WHERE AA.action_date BETWEEN '2017-01-01' AND '2017-01-31' AND AA.entity_code = BB.entity_code) AS visits
FROM
sys_reference.entities_visited BB
GROUP BY
BB.entity_code
, WEEK(BB.action_date,1)) AS XX
ON
CC.entity_code = XX.storeCode
WHERE
CC.action_date BETWEEN '2017-01-01' AND '2017-01-31'
AND YEARWEEK(cycle_end_date,1) BETWEEN YEARWEEK('2017-01-01') AND YEARWEEK('2017-01-31')
GROUP BY
CC.entity_code
, WEEK(cycle_end_date,1)
LIMIT 0,100000;
调用周期表
entity_code | action_date| cycle_end_date
------------+------------+---------------
108792 |2017-01-07 |2017-01-11
108792 |2017-01-10 |2017-01-11
108792 |2017-01-12 |2017-01-18
108793 |2017-01-08 |2017-01-11
108795 |2017-01-06 |2017-01-11
108796 |2017-01-05 |2017-01-11
108795 |2017-01-13 |2017-01-18
108792 |2017-01-07 |2017-01-11
108792 |2017-01-14 |2017-01-18
108793 |2017-01-14 |2017-01-18
108796 |2017-01-16 |2017-01-18
实体访问表
entity_code | visit_date | cycle_end_date
------------+------------+---------------
108792 |2017-01-07 |2017-01-11
108793 |2017-01-08 |2017-01-11
108795 |2017-01-06 |2017-01-11
108796 |2017-01-05 |2017-01-11
108795 |2017-01-13 |2017-01-18
108792 |2017-01-14 |2017-01-18
108793 |2017-01-14 |2017-01-18
108796 |2017-01-16 |2017-01-18
从示例数据中，我需要从Call Cycle Table返回所有行。