Mysql 将结果分组到每小时存储桶的SQL查询
我有一个非常简单的MySQL表Mysql 将结果分组到每小时存储桶的SQL查询,mysql,sql,Mysql,Sql,我有一个非常简单的MySQL表 Name | Time | Count James | 11:00 | 10 Simon | 11:00 | 5 James | 11:30 | 4 Oliver| 11:30 | 2 James | 12:00 | 1 etc. 我想创建一个MySQL查询,对每个人的计数求和,并输出最后1小时值、最后3小时值、最后6小时值、最后12小时值和最后24小时值 e、 g.如果现在的时间是12:59,上表将输出: Name | Last
Name | Time | Count
James | 11:00 | 10
Simon | 11:00 | 5
James | 11:30 | 4
Oliver| 11:30 | 2
James | 12:00 | 1
etc.
我想创建一个MySQL查询,对每个人的计数求和,并输出最后1小时值、最后3小时值、最后6小时值、最后12小时值和最后24小时值
e、 g.如果现在的时间是12:59,上表将输出:
Name | Last-1 | Last-3 | Last-6
James | 1 | 15 | 15
Simon | 0 | 5 | 5
Oliver| 0 | 2 | 2
是否可以在单个查询中执行此操作?到目前为止,我已经:
SELECT name, HOUR( NOW( ) ) - HOUR( time ) AS lasthours, SUM( count ) AS c
FROM table
GROUP BY name, lasthours
HAVING lasthours =0
ORDER BY c DESC
这给了我过去的一个小时,但我如何获得额外的列
非常感谢您的帮助
编辑:
接受的答案需要稍加调整,结果如下:
SELECT name ,
SUM( IF( HOUR( TIMEDIFF( NOW( ) , time ) ) <=0, count , 0 ) ) AS `Last hour` ,
SUM( IF( HOUR( TIMEDIFF( NOW( ) , time ) ) <=3, count , 0 ) ) AS `Last 3 hours` ,
SUM( IF( HOUR( TIMEDIFF( NOW( ) , time ) ) <=6, count , 0 ) ) AS `Last 6 hours` ,
SUM( IF( HOUR( TIMEDIFF( NOW( ) , time ) ) <=12, count , 0 ) ) AS `Last 12 hours` ,
SUM( IF( HOUR( TIMEDIFF( NOW( ) , time ) ) <=24, count , 0 ) ) AS `Last 24 hours` ,
SUM( IF( HOUR( TIMEDIFF( NOW( ) , time ) ) <=48, count , 0 ) ) AS `Last 2 days` ,
SUM( IF( HOUR( TIMEDIFF( NOW( ) , time ) ) <=72, count , 0 ) ) AS `Last 3 days` ,
SUM( IF( HOUR( TIMEDIFF( NOW( ) , time ) ) <=96, count , 0 ) ) AS `Last 4 days` ,
SUM( IF( HOUR( TIMEDIFF( NOW( ) , time ) ) <=120, count , 0 ) ) AS `Last 5 days` ,
SUM( IF( HOUR( TIMEDIFF( NOW( ) , time ) ) <=144, count , 0 ) ) AS `Last 6 days` ,
SUM( IF( HOUR( TIMEDIFF( NOW( ) , time ) ) <=168, count , 0 ) ) AS `Last week`
FROM table
GROUP BY name
ORDER BY `Last hour` DESC
选择名称,
SUM(如果(HOUR(TIMEDIFF(NOW(),time))选择'name',
总和(如果(小时)(TIMEDIFF(CURTIME(),`Time`))选择`name`,
SUM(如果(HOUR)(TIMEDIFF(CURTIME(),`Time`))试试这个
Select Name,Sum(Case When Hour(Now)-Hour(Time) <= 1 Then Count Else 0 End) As Last1,
Sum(Case When Hour(Now)-Hour(Time) Between 2 AND 3 Then Count Else 0 End) As Last3,
Sum(Case When Hour(Now)-Hour(Time) Between 4 And 6 Then Count Else 0 End) As Last6
From name
Order By
选择Name,Sum(当小时(现在)-小时(时间)试试这个
Select Name,Sum(Case When Hour(Now)-Hour(Time) <= 1 Then Count Else 0 End) As Last1,
Sum(Case When Hour(Now)-Hour(Time) Between 2 AND 3 Then Count Else 0 End) As Last3,
Sum(Case When Hour(Now)-Hour(Time) Between 4 And 6 Then Count Else 0 End) As Last6
From name
Order By
Select Name,Sum(Case When Hour(Now)-Hour(Time)稍作调整就可以了,但我更喜欢下面的解决方案。谢谢!稍作调整就可以了,但我更喜欢下面的解决方案。谢谢!这太棒了,谢谢。尽管我不得不将CURTIME()改为Now()这太棒了,谢谢。虽然我不得不把CURTIME()改成NOW()