Sql 同一日期发生多少次

我有一个带有日期的表列，对应于我公司的发送订单。它的格式如下2019-07-3109:52:09.427

我希望有一个SQL表，用于计算在特定日期向何处发送的订单数量，如：

Date            Number of sent orders
2019-07-31      23

使用count和cast datetime作为日期

您可以尝试以下方法：

select moddate ,count(*) over (partition by cast (ModDate as date)) from yourtable

---

您可以尝试此方法，这将为您提供每个不同日期的计数结果

  select distinct cast(ModDate as date) as Date, count(ModDate) as [Count] from table group by cast(ModDate as date) 

您可以使用此查询

SELECT CONVERT(DATE,CreatedDate) as [DateTime], COUNT(*) as [Count]
FROM Orders
GROUP BY CONVERT(DATE,CreatedDate)

  select distinct cast(ModDate as date) as Date, count(ModDate) as [Count] from table group by cast(ModDate as date) 

SELECT CONVERT(DATE,CreatedDate) as [DateTime], COUNT(*) as [Count]
FROM Orders
GROUP BY CONVERT(DATE,CreatedDate)