按功能分组在 SQL Server CTE 中无法正常工作

Question

这是 SQL Server CTE，

;with grp (Sdate,TransactionType,tot)
as

(select cast(CallStartTime as DATE)Date, Transaction_type as [Transaction type], 
    (count ([Transaction_type])) as [Total Count] 
    from TBL_AGENT_TRANSACTIONS 
    where cast(CallStartTime as DATE)>='2015-04-27' and cast(CallEndTime as Date)<='2015-04-27'  and Transaction_type in ('Debit_Card')
    group by CallStartTime, Transaction_type)

select grp.Sdate,grp.TransactionType,sum(grp.tot) as totalCount from grp group by TransactionType,grp.Sdate,grp.tot

这里我想根据 Sdate 和 Transaction Type 对 totalcount 进行分组。但它不能正常工作。我有 3 条具有相同 Sdate、Transaction Type 的记录，我需要将 totalcount 显示为 3 作为一行。但我得到如下两行。

任何人都可以帮我解决这个小问题吗？

更新：

我得到了确切的问题，

在我的表“ TBL_AGENT_TRANSACTIONS ”中，列“ Transaction_type ”的数据类型是 varchar 但我需要根据 Sdate 和 Transaction_type 找到该 Transaction_type 的总和。如果我sum(Transaction_type)输入第一个选择查询，它会显示数据类型转换失败错误，所以我count(Transaction_type)在第一个选择查询中找到并在第二个选择查询中获取该字段的总和。我想我的问题只在这个过程中。

Answer 1

在您的 GROUP BY 中添加 cast(CallStartTime as DATE)：

;with grp (Sdate,TransactionType,tot)
as
(select cast(CallStartTime as DATE)Date, Transaction_type as [Transaction type], 
(count ([Transaction_type])) as [Total Count] 
from TBL_AGENT_TRANSACTIONS 
where cast(CallStartTime as DATE)>='2015-04-27' 
    and cast(CallEndTime as Date)<='2015-04-27'  
    and Transaction_type in ('Debit_Card')
group by cast(CallStartTime as DATE), Transaction_type)

select grp.Sdate,grp.TransactionType,sum(grp.tot) as totalCount 
from grp 
group by TransactionType,grp.Sdate,grp.tot