Question

我在Blackberry 7.0的应用程序中使用了HSQL查询和Group By Clause。

我尝试了以下查询：

SELECT Cus.cus_id,Cus.cus_last_name,Inv.inv_id,Sum(Inv.inv_due_amt) as ACCOUNT
FROM Customer as Cus,Invoice as Inv
Where Cus.cus_id=Inv.cus_id 
GROUP BY Cus.cus_last_name;

我得到"Not in aggregate function or group by clause error"

如何解决此问题？

Answer 1

列Cus.cus_id和Inv.ind_id需要处于聚合函数或GROUP BY子句中。我怀疑你想要：

SELECT 
  Cus.cus_id,Cus.cus_last_name,Inv.inv_id,Sum(Inv.inv_due_amt) as ACCOUNT 
FROM 
  Customer as Cus,Invoice as Inv 
Where 
  Cus.cus_id=Inv.cus_id 
GROUP BY 
  Cus.cus_last_name, Cus.cus_id, Inv.inv_id

但是我不确定这会给你真正想要的分组。这可能更符合您的要求：

SELECT 
  Cus.cus_id,Cus.cus_last_name,Sum(Inv.inv_due_amt) as ACCOUNT 
FROM 
  Customer as Cus,Invoice as Inv 
Where 
  Cus.cus_id=Inv.cus_id 
GROUP BY 
  Cus.cus_last_name, Cus.cus_id

Answer 2

所有非聚合列都应该是GROUP BY子句的一部分。试试这个

SELECT Cus.cus_id,Cus.cus_last_name,Inv.inv_id,Sum(Inv.inv_due_amt) as ACCOUNT
FROM Customer as Cus,Invoice as Inv
Where Cus.cus_id=Inv.cus_id 
GROUP BY Cus.cus_id,Cus.cus_last_name,Inv.inv_id

GROUP BY子句 - 不适用于Blackberry 7.0的HSQLDB

2 个答案: