Question

您好我的查询曾经有问题。我的SQL技能并不是那么好，不确定我缺少什么。或者，如果这是正确的方法。也许使用临时表？

基本要点给定了一定的时间范围，我需要计算超过5个等级的最高点数。

trialScores - 保持分数/分数，试验，狗，人和成员表只是元数据

classId 5需要不同的日期范围

这是我对MySQL的查询

select
    t.id,
    d.id,
    p.id,
    p.firstname,
    p.lastname,
    d.id dogId,
    d.dogName,
    c.id,
    c.class,
    t.trialStartDate,
    s.points,
    if(c.id = 5, '2012-08-01', '2012-11-18') as startDate,
    if(c.id = 5, '2013-07-31', '2013-12-31') as endDate,
    SUM(ts.points) AS pointsAggregate
from trialScores ts
    inner join trials t on t.id = ts.trialId
    inner join dogs d on d.id = ts.dogId
    inner join people p on p.id = ts.personId
    inner join classes c on c.id = ts.classId
where t.deletedAt is null
    and ts.deletedAt is null
    and ts.memberAtTrial = 1
    and d.omitFromTripleCrownDOY = 0
    and t.associationId = 1           
GROUP BY p.id, ts.dogId, ts.classId
having t.trialStartDate between startDate and endDate
order by ts.classId, pointsAggregate desc

看起来这样修复它，在选择中太多而不在Group by？：

 select
d.dogName,
c.class,
p.firstName,
p.lastName,    
SUM(ts.points) AS pointsAggregate
from trialScores ts
inner join trials t on t.id = ts.trialId
inner join dogs d on d.id = ts.dogId
inner join people p on p.id = ts.personId
inner join classes c on c.id = ts.classId
where t.deletedAt is null
and ts.deletedAt is null
and ts.memberAtTrial = 1
and d.omitFromTripleCrownDOY = 0
and t.associationId = 1 
and t.trialStartDate between if(c.id = 5, '2012-08-01', '2012-11-18') and if(c.id = 5, '2013-07-31', '2013-12-31')  
GROUP BY ts.dogId, ts.classId
order by ts.classId, pointsAggregate desc

Answer 1

您可以尝试下面的查询，如果它可以工作吗？

select
d.dogName,
c.class,
p.firstName,
p.lastName,    
SUM(ts.points) AS pointsAggregate
from trialScores ts
inner join trials t on t.id = ts.trialId
inner join dogs d on d.id = ts.dogId
inner join people p on p.id = ts.personId
inner join classes c on c.id = ts.classId
where t.deletedAt is null
and ts.deletedAt is null
and ts.memberAtTrial = 1
and d.omitFromTripleCrownDOY = 0
and t.associationId = 1 
and t.trialStartDate between if(c.id = 5, '2012-08-01', '2012-11-18') and if(c.id = 5, '2013-07-31', '2013-12-31')  
GROUP BY ts.classId,p.firstName,p.lastName 
order by ts.classId, pointsAggregate desc

SQL - 有和分组的问题

1 个答案: