SQL查询到MS Access查询

Question

我有一段SQL代码可以运行以显示特定工作负载的使用期限。 由于某些系统更改，我很快将无法通过SQL访问此数据库，因此我并没有真正遵循它。

请有人可以帮助我将其转换为MS Access查询，我在下面提供了SQL和结果，

的SQL

Use MoxieApp
select
b.mailboxid,
b.Name as 'Mailbox',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) <= '1' THEN 1 ELSE 0 END) as '1',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '1' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '2' THEN 1 ELSE 0 END) as '2',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '2' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '3' THEN 1 ELSE 0 END) as '3',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '3' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '4' THEN 1 ELSE 0 END) as '4',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '4' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '5' THEN 1 ELSE 0 END) as '5',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '5' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '6' THEN 1 ELSE 0 END) as '6',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '6' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '7' THEN 1 ELSE 0 END) as '7',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '7' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '8' THEN 1 ELSE 0 END) as '8',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '8' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '9' THEN 1 ELSE 0 END) as '9',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '9' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '10' THEN 1 ELSE 0 END) as '10',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '10' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '11' THEN 1 ELSE 0 END) as '11',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '11' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '12' THEN 1 ELSE 0 END) as '12',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '12' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '13' THEN 1 ELSE 0 END) as '13',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '13' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '14' THEN 1 ELSE 0 END) as '14',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '14' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '15' THEN 1 ELSE 0 END) as '15',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '15' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '16' THEN 1 ELSE 0 END) as '16',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '16' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '17' THEN 1 ELSE 0 END) as '17',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '17' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '18' THEN 1 ELSE 0 END) as '18',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '18' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '19' THEN 1 ELSE 0 END) as '19',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '19' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '20' THEN 1 ELSE 0 END) as '20',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '20' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '21' THEN 1 ELSE 0 END) as '21',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '21' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '22' THEN 1 ELSE 0 END) as '22',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '22' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '23' THEN 1 ELSE 0 END) as '23',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '23' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '24' THEN 1 ELSE 0 END) as '24',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '24' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '48' THEN 1 ELSE 0 END) as '48',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '48' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '72' THEN 1 ELSE 0 END) as '72',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '72' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '96' THEN 1 ELSE 0 END) as '96',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '96' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '120' THEN 1 ELSE 0 END) as '120',
SUM(case when datediff(hh,a.DateRecv,GETUTCDATE()) > '120' and datediff(hh,a.DateRecv,GETUTCDATE()) <= '10000' THEN 1 ELSE 0 END) as 'Greater'
from mailmessage a
left outer join mailbox b on a.origmailboxid = b.mailboxid
where a.routedate >  '2015-04-21'
and a.status = '0'
and b.MailBoxID IN ('163')
group by name,mailboxid
select mailboxid, name from mailbox

结果

163邮箱名称39 16 9 8 4 2 1 2 4 2 2 7 9 5 14 18 18 12 9 4 2 3 0 0 2 3 2 0 1

我真的很感谢您的帮助！ 提前致谢

Answer 1

这是如何进行日期算术的示例：

SUM(iif(datediff("h", a.DateRecv, now()) > 1 and datediff("h", a.DateRecv, now()) <= 2, 1, 0)) as [2]

但是，这不能处理GETUTCDATE()问题。 如果由于某种原因NOW()对您不起作用，请计算所需的值并将其传递给查询。