我有一个查询选择某些列值作为结果集。
根据该子查询产生的一些列值，我想从另一个表中选择记录。
EG。
POST | Start DATE | End DATE | MONTHS
---------------------------------------------------------------
Senior Software Engg. | 2018-04-18 | - |
Software Engg. | 2017-04-18 | 2018-04-18 | 12
Assoc. Software Engg. | 2016-04-18 | 2017-04-18 | 12
我有以下来自此查询的结果集：
SELECT `POST`,
`DATE`,
IFNULL(END_DATE,'Running') AS END_DATE,
IFNULL(MONTH,'Running') AS MONTH, user
FROM
(
SELECT `POST`,
`DATE`,
@prev AS END_DATE,
TIMESTAMPDIFF(month,DATE, IFNULL(@prev, CURDATE())) AS MONTH,
@prev := T.DATE AS VarDate, user
FROM (
SELECT DISTINCT designation_id as id, d.title as POST, DATE(dt_datetime) as DATE, u.id as user
FROM users_history_check u
INNER JOIN
designations d
ON d.id = u.designation_id
WHERE u.id = $userID
ORDER BY DATE DESC) T, (SELECT @prev:=null) R
) T1
我想根据每行中的Start DATE和END DATE值从其他表中提取记录。
预期产出：
POST | Start DATE | End DATE | MONTHS | Team
-------------------------------------------------------------------------
Senior Software Engg. | 2018-04-18 | - | 0 | Research
Software Engg. | 2017-04-18 | 2018-04-18 | 12 | Finance
Assoc. Software Engg. | 2016-04-18 | 2017-04-18 | 12 | Finance
以下是我想要获取团队记录的表格：
user_team
date | team | users_id
-------------------------------------------------
2016-04-18 | Finance | 1
2017-05-18 | Finance | 1
2018-04-18 | Research | 1
如何在单个查询中执行此操作？
非常感谢任何帮助。感谢。