Mysql 如何在单个查询中组合多个并集

该查询返回工作日的平均账单，包括站点和时间。 下面的查询使用多个union，我想在单个查询中组合所有union 我怎样才能做到这一点

select 
        a.Month,
        'Weekday' as Type,
        'Lunch' as 'Sale',
        sum(case
            when a.siteId = '102' then a.AvgBill
            else '--'
        end) as '102',
        sum(case
            when a.siteId = '103' then a.AvgBill
            else '--'
        end) as '103',
        sum(case
            when a.siteId = '104' then a.AvgBill
            else '--'
        end) as '104',
        sum(case
            when a.siteId = '105' then a.AvgBill
            else '--'
        end) as '105',
        sum(case
            when a.siteId = '106' then a.AvgBill
            else '--'
        end) as '106'
    from
        (select 
            date_format(o.dayStatus, '%M') as Month,
                c.companyId as CompanyId,
                o.companyId as siteId,
                o.bill,
                round((sum(o.bill) / count(orderId)), 2) as AvgBill,
                date_format(DTTM, '%a') as Day
        from
            orders o, mdm_sites s, mdm_company c
        where
            s.siteId = o.companyId
                and o.isBilled = 1
                and billMode = 0
                and s.companyid = c.CompanyId
                and time(DTTM) <= '15:00'
                and date_format(DTTM, '%a') not in ('Sat' , 'Sun')
                and year(o.dayStatus) = (2014)
                and case
                when 0 in (1) then c.companyId in (c.companyid)
                else c.companyId in (1)
            end
                and case
                when 0 in (0) then o.companyId in (o.companyId)
                else o.companyId in (0)
            end
                and case
                when 0 in (12) then month(o.dayStatus) in (month(o.dayStatus))
                else month(o.dayStatus) in (12)
            end
        group by c.companyId , o.companyId) as a
    group by a.CompanyId 
    union (select 
        a.Month,
        'Weekday' as Type,
        'Evening' as 'Sale',
        sum(case
            when a.siteId = '102' then a.AvgBill
            else '--'
        end) as '102',
        sum(case
            when a.siteId = '103' then a.AvgBill
            else '--'
        end) as '103',
        sum(case
            when a.siteId = '104' then a.AvgBill
            else '--'
        end) as '104',
        sum(case
            when a.siteId = '105' then a.AvgBill
            else '--'
        end) as '105',
        sum(case
            when a.siteId = '106' then a.AvgBill
            else '--'
        end) as '106'
    from
        (select 
            date_format(o.daystatus, '%M') as Month,
                c.companyId as CompanyId,
                o.companyId as siteId,
                o.bill,
                round((sum(o.bill) / count(orderId)), 2) as AvgBill,
                date_format(DTTM, '%a') as Day
        from
            orders o, mdm_sites s, mdm_company c
        where
            s.siteId = o.companyId
                and o.isBilled = 1
                and billMode = 0
                and s.companyid = c.CompanyId
                and time(DTTM) > '15:00'
                and time(DTTM) < '19:00'
                and date_format(DTTM, '%a') not in ('Sat' , 'Sun')
                and year(o.dayStatus) = (2014)
                and case
                when 0 in (1) then c.companyId in (c.companyid)
                else c.companyId in (1)
            end
                and case
                when 0 in (0) then o.companyId in (o.companyId)
                else o.companyId in (0)
            end
                and case
                when 0 in (12) then month(o.dayStatus) in (month(o.dayStatus))
                else month(o.dayStatus) in (12)
            end
        group by c.companyId , o.companyId) as a
    group by a.CompanyId) union (select 
        a.Month,
        'Weekday' as Type,
        'Dinner' as 'Sale',
        sum(case
            when a.siteId = '102' then a.AvgBill
            else '--'
        end) as '102',
        sum(case
            when a.siteId = '103' then a.AvgBill
            else '--'
        end) as '103',
        sum(case
            when a.siteId = '104' then a.AvgBill
            else '--'
        end) as '104',
        sum(case
            when a.siteId = '105' then a.AvgBill
            else '--'
        end) as '105',
        sum(case
            when a.siteId = '106' then a.AvgBill
            else '--'
        end) as '106'
    from
        (select 
            date_format(o.dayStatus, '%M') as Month,
                c.companyId as CompanyId,
                o.companyId as siteId,
                o.bill,
                round((sum(o.bill) / count(orderId)), 2) as AvgBill,
                date_format(DTTM, '%a') as Day
        from
            orders o, mdm_sites s, mdm_company c
        where
            s.siteId = o.companyId
                and o.isBilled = 1
                and billMode = 0
                and s.companyid = c.CompanyId
                and time(DTTM) >= '19:00'
                and date_format(DTTM, '%a') not in ('Fri' , 'Sat', 'Sun')
                and year(o.dayStatus) = (2014)
                and case
                when 0 in (1) then c.companyId in (c.companyid)
                else c.companyId in (1)
            end
                and case
                when 0 in (0) then o.companyId in (o.companyId)
                else o.companyId in (0)
            end
                and case
                when 0 in (12) then month(o.dayStatus) in (month(o.dayStatus))
                else month(o.dayStatus) in (12)
            end
        group by c.companyId , o.companyId) as a
    group by a.CompanyId) union (select 
        a.Month,
        'Weekend' as Type,
        'Lunch' as 'Sale',
        sum(case
            when a.siteId = '102' then a.AvgBill
            else '--'
        end) as '102',
        sum(case
            when a.siteId = '103' then a.AvgBill
            else '--'
        end) as '103',
        sum(case
            when a.siteId = '104' then a.AvgBill
            else '--'
        end) as '104',
        sum(case
            when a.siteId = '105' then a.AvgBill
            else '--'
        end) as '105',
        sum(case
            when a.siteId = '106' then a.AvgBill
            else '--'
        end) as '106'
    from
        (select 
            date_format(o.daystatus, '%M') as Month,
                c.companyId as CompanyId,
                o.companyId as siteId,
                o.bill,
                round((sum(o.bill) / count(orderId)), 2) as AvgBill,
                date_format(DTTM, '%a') as Day
        from
            orders o, mdm_sites s, mdm_company c
        where
            s.siteId = o.companyId
                and o.isBilled = 1
                and billMode = 0
                and s.companyid = c.CompanyId
                and time(DTTM) <= '15:00'
                and date_format(DTTM, '%a') in ('Sat' , 'Sun')
                and year(o.dayStatus) = (2014)
                and case
                when 0 in (1) then c.companyId in (c.companyid)
                else c.companyId in (1)
            end
                and case
                when 0 in (0) then o.companyId in (o.companyId)
                else o.companyId in (0)
            end
                and case
                when 0 in (12) then month(o.dayStatus) in (month(o.dayStatus))
                else month(o.dayStatus) in (12)
            end
        group by c.companyId , o.companyId) as a
    group by a.CompanyId) union (select 
        a.Month,
        'Weekend' as Type,
        'Evening' as 'Sale',
        sum(case
            when a.siteId = '102' then a.AvgBill
            else '--'
        end) as '102',
        sum(case
            when a.siteId = '103' then a.AvgBill
            else '--'
        end) as '103',
        sum(case
            when a.siteId = '104' then a.AvgBill
            else '--'
        end) as '104',
        sum(case
            when a.siteId = '105' then a.AvgBill
            else '--'
        end) as '105',
        sum(case
            when a.siteId = '106' then a.AvgBill
            else '--'
        end) as '106'
    from
        (select 
            date_format(o.dayStatus, '%M') as Month,
                c.companyId as CompanyId,
                o.companyId as siteId,
                o.bill,
                round((sum(o.bill) / count(orderId)), 2) as AvgBill,
                date_format(DTTM, '%a') as Day
        from
            orders o, mdm_sites s, mdm_company c
        where
            s.siteId = o.companyId
                and o.isBilled = 1
                and billMode = 0
                and s.companyid = c.CompanyId
                and time(DTTM) > '15:00'
                and time(DTTM) < '19:00'
                and date_format(DTTM, '%a') in ('Sat' , 'Sun')
                and year(o.dayStatus) = (2014)
                and case
                when 0 in (1) then c.companyId in (c.companyid)
                else c.companyId in (1)
            end
                and case
                when 0 in (0) then o.companyId in (o.companyId)
                else o.companyId in (0)
            end
                and case
                when 0 in (12) then month(o.dayStatus) in (month(o.dayStatus))
                else month(o.dayStatus) in (12)
            end
        group by c.companyId , o.companyId) as a
    group by a.CompanyId) union (select 
        a.Month,
        'Weekend' as Type,
        'Dinner' as 'Sale',
        sum(case
            when a.siteId = '102' then a.AvgBill
            else '--'
        end) as '102',
        sum(case
            when a.siteId = '103' then a.AvgBill
            else '--'
        end) as '103',
        sum(case
            when a.siteId = '104' then a.AvgBill
            else '--'
        end) as '104',
        sum(case
            when a.siteId = '105' then a.AvgBill
            else '--'
        end) as '105',
        sum(case
            when a.siteId = '106' then a.AvgBill
            else '--'
        end) as '106'
    from
        (select 
            date_format(o.dayStatus, '%M') as Month,
                c.companyId as CompanyId,
                o.companyId as siteId,
                o.bill,
                round((sum(o.bill) / count(orderId)), 2) as AvgBill,
                date_format(DTTM, '%a') as Day
        from
            orders o, mdm_sites s, mdm_company c
        where
            s.siteId = o.companyId
                and o.isBilled = 1
                and billMode = 0
                and s.companyid = c.CompanyId
                and time(DTTM) >= '19:00'
                and date_format(DTTM, '%a') in ('Fri' , 'Sat', 'Sun')
                and year(o.dayStatus) = (2014)
                and case
                when 0 in (1) then c.companyId in (c.companyid)
                else c.companyId in (1)
            end
                and case
                when 0 in (0) then o.companyId in (o.companyId)
                else o.companyId in (0)
            end
                and case
                when 0 in (12) then month(o.dayStatus) in (month(o.dayStatus))
                else month(o.dayStatus) in (12)
            end
        group by c.companyId , o.companyId) as a
    group by a.CompanyId);


the output of above query

month       Type    Sale    102     103    104     105      106   
------------------------------------------------------------------
December    Weekday Lunch   566.63  530.19  644.9   556.9   467.65
December    Weekday Evening 433.89  404.69  457.18  547.22  396.6
December    Weekday Dinner  427.68  354.54  371.42  386.21  366.03
December    Weekend Lunch   410.57  381.36  383.86  365.94  394.14
December    Weekend Evening 418.45  305.31  429.12  464.81  301.9
December    Weekend Dinner  415.91  374.95  375.28  376.93  360.45

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我如何在单个查询中做到这一点，谢谢

pivot将是这里的理想解决方案，并保存在执行计划中。你的重点小组将是月、类型、销售。您的计算组为102103104105106

透视也可以在单个查询中完成

枢轴通用指南：

下面是一个与您试图实现的目标非常相似的示例：

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您能否发布一个只包含核心问题的简化版查询？否则，我怀疑任何人都不会通过。这个查询需要更多的时间…所以我想用更少的时间执行