我需要从不同日期的一堆日期中获取MAX日期。我有一个查询返回6个日期。我需要以某种方式获得该查询的最大值。这是我的作品,给我6个不同的MAX日期第一个查询:如何从最大日期子查询列表中选择最大日期
SELECT
MAX(mi.last_updated_dts),
(SELECT MAX(lt.created_dts) FROM live_training as lt WHERE lt.me_id = 1156),
(SELECT MAX(gm.created_dts) FROM group_member as gm WHERE gm.me_id = 1156),
(SELECT MAX(clm.created_dts) FROM contact_list_member as clm WHERE clm.me_id = 1156),
(SELECT MAX(mc.created_dts) FROM member_case as mc WHERE mc.me_id = 1156),
(SELECT MAX(mcc.created_dts) FROM member_case_comment as mcc INNER JOIN member_case as mc ON (mcc.member_case_id = mc.id) WHERE mc.me_id = 1156)
FROM
member_info AS mi
WHERE mi.id = 1276
这里是什么样的,我试图做的,但它不工作:
SELECT MAX(
SELECT
MAX(mi.last_updated_dts),
(SELECT MAX(lt.created_dts) FROM live_training as lt WHERE lt.me_id = 1156),
(SELECT MAX(gm.created_dts) FROM group_member as gm WHERE gm.me_id = 1156),
(SELECT MAX(clm.created_dts) FROM contact_list_member as clm WHERE clm.me_id = 1156),
(SELECT MAX(mc.created_dts) FROM member_case as mc WHERE mc.me_id = 1156),
(SELECT MAX(mcc.created_dts) FROM member_case_comment as mcc INNER JOIN member_case as mc ON (mcc.member_case_id = mc.id) WHERE mc.me_id =1156)
FROM
member_info AS mi
WHERE mi.id = 1276
) as theMostMaxDate
我不不知道应该从何声明中输入什么,或者甚至可能。谢谢你的帮助!
@tylerBrignone这将是更好地提出新问题,而不是添加到当前的新问题会得到更多的曝光正改变现有问题某种程度上使答案无效(在某种意义上)。我很高兴看到后续行动。 – jpw