我正在处理存储过程。我有一个名为#CashFlow的表,其中包含一段时间的数据。
FundID TradeDate Amount
1 1/1/2004 123.00
1 6/30/2006 100.00
2 1/1/2004 100.00
2 3/15/2010 150.00
3 1/1/2010 100.00
我还有一个名为#Funds的表,其中包含我感兴趣的基金ID列表。(有一些我不会厌烦的处理,为我生成这个基金列表)例如,我只想说我的#Funds表中只有ID为1和2(不包括3个)。
我有三个时间段(所有结束时间为'8/31/2010'),从2004年1月1日,2006年1月1日和2010年1月1日开始,我想汇总总和三个时期。
我尝试过这样的事情:
select sum(c1.amount), sum(c2.amount), sum(c3.amount)
from
#fundtable f
inner join
#cashflow c1 on f.fundid = c1.fundid and c1.tradedate between '1/1/2004' and '8/31/2010'
inner join
#cashflow c2 on f.fundid = c2.fundid and c2.tradedate between '1/1/2006' and '8/31/2010'
inner join
#cashflow c3 on f.fundid = c3.fundid and c3.tradedate between '1/1/2010' and '8/31/2010'
但它没有做我想要的事情(实际上我无法弄清楚它到底在做什么)。如果我只选择一个句点,我会得到正确的值,但是第二个我添加了一个联接,我的数字全部被打破了。
这就像我想要替换的原始查询:
select
(select sum(Amount) from #Cashflow c inner join #fundtable f on c.fundid = f.fundid where tradedate between '1/1/2004' and '8/31/2010') as 'Period1',
(select sum(Amount) from #Cashflow c inner join #fundtable f on c.fundid = f.fundid where tradedate between '1/1/2006' and '8/31/2010') as 'Period2',
(select sum(Amount) from #Cashflow c inner join #fundtable f on c.fundid = f.fundid where tradedate between '1/1/2010' and '8/31/2010') as 'Period3'
请注意,我的日期实际上是变量(对此而言无关紧要)和我的原始查询
答案 0 :(得分:6)
SELECT SUM(CASE WHEN TradeDate BETWEEN '2004-01-01' AND '2010-08-31' THEN Amount END),
SUM(CASE WHEN TradeDate BETWEEN '2006-01-01' AND '2010-08-31' THEN Amount END),
SUM(CASE WHEN TradeDate BETWEEN '2010-01-01' AND '2010-08-31' THEN Amount END)
FROM Funds
JOIN Cashflow
ON Cashflow.id = Funds.id
答案 1 :(得分:2)
使用group by:
select period, sum(money) from table group by period