小编Dav*_*usa的帖子

嘿,我正在使用oracle sql来创建数据库.

我现在正在处理查询,我想出了两个单独的quires,我想合并以获得结果.

我创建的第一个查询是查找演出所产生的总金额:

    SELECT SUM(bookings * CategoryPrice )AS Total_Money_Made
    FROM ( SELECT CategoryPrice , count(*) AS bookings
       FROM Booking b
       JOIN performance per
         ON b.performanceid =  per.performanceid
       JOIN Production p
         ON per.productionid = p.productionid          
      WHERE per.performanceid IN (1, 2, 3, 4)
      GROUP BY CategoryPrice)

这给了我一个结果:

TOTAL_MONEY_MADE

       337.5 

然后我有另一个查询,计算出总的特许金:

              SELECT SUM(ConsessionAmount * 2) AS Total_Consession_Money
      FROM( SELECT COUNT (*) AS ConsessionAmount
FROM Booking 
WHERE 
Consession = 'Yes' AND PerformanceID = '1' OR 
Consession = 'Yes' AND PerformanceID = '2' OR …

我已经计算了不同表中的计数总和.这样做两次,每次一次performanceID.现在我想得到两笔钱的总和.

下面是我现在做的两笔钱的代码:

    SELECT SUM((COUNT (BookingID) * CategoryPrice)) AS TotalAmount
    FROM Booking, Production
    WHERE Booking.PerformanceID IN(SELECT PerformanceID FROM Performance WHERE PerformanceID = '1')
    and Production.ProductionID IN 
    (SELECT ProductionID FROM Performance WHERE PerformanceID = '1') 
    GROUP BY BookingID, CategoryPrice
    UNION ALL
    SELECT SUM((COUNT (BookingID) * CategoryPrice)) AS TotalAmount
    FROM Booking, Production
    WHERE Booking.PerformanceID IN(SELECT PerformanceID FROM Performance WHERE PerformanceID = '2')
    and Production.ProductionID IN 
    (SELECT ProductionID FROM Performance WHERE PerformanceID = '2')
     GROUP BY BookingID, CategoryPrice

我得到的结果是:

TOTALAMOUNT
-----------
         70 …