GROUP BY，HAVING和COUNT可以获得汇总结果

Question

我已经看过一些关于使用这三个函数的线程，但根据我读到的内容，我无法得到我想要的结果。

我正在使用SQL SERVER 2012.该表是APXFirm.AdvApp.vPerformance 这是表模式

我尝试了以下查询：

USE APXFirm
SELECT PortfolioBaseCode
 ,COUNT(  portfoliobasecode) AS Pcount
  FROM APXFirm.AdvApp.vPerformance
        WHERE rowtypecode = 'd'   
        and DetailKeyCode is NOT NULL
        and NetOrGrossCode = 'n'
and DetailKeyCode <> 'us'
and PortfolioBaseCode IN ('test','test2')
GROUP BY PortfolioBaseCode,
      NetOrGrossCode, 
            RowTypeCode ,
           DetailKeyCode ,
           MarketValue 
 HAVING marketvalue > 1

但是这给了我这样的结果：

PortfolioBaseCode   Pcount
test                 1
test                 1
test                 1
test2                1
test2                1
test2                1
test2                1

我想要一个像这样的结果

PortfolioBaseCode   Pcount
test                 3
test2                4

我不确定我是否需要子查询，连接或在计数中使用distinct来实现此功能或其他功能。我也试过这一行，但没有改变结果。

 ,COUNT( DISTINCT portfoliobasecode) AS Pcount

由于

Answer 1

group by中有太多列。我想你只想要：

SELECT PortfolioBaseCode, COUNT(  portfoliobasecode) AS Pcount
FROM APXFirm.AdvApp.vPerformance
WHERE rowtypecode = 'd' AND  
      DetailKeyCode is NOT NULL AND
      NetOrGrossCode = 'n' AND
      DetailKeyCode <> 'us' AND
      PortfolioBaseCode IN ('test', 'test2')
GROUP BY PortfolioBaseCode
HAVING SUM(marketvalue) > 1;

我实际上不确定HAVING子句应该做什么。也许你可以删除它。也许您可以将逻辑marketvalue > 1移到WHERE子句。

Answer 2

替换

HAVING marketvalue > 1

与

HAVING Pcount > 1