Sql Postgres按天将数据分组到计数中

Sql Postgres按天将数据分组到计数中,sql,postgresql,Sql,Postgresql,看起来很简单的问题,我的大脑暂时僵住了,谷歌富帮不上忙 我想得到每天特定事件类型的计数。例如: 数据: 进入: 目前,我有一个简单的GROUPBY语句,它聚合了该行的总计数,而不是分成组。有人能帮忙吗?:) 谢谢大家! 这应计算分组的唯一实例[接收日期]和[类型]: SELECT "Date Received", "Type", COUNT(*) AS Count FROM YourTable GROUP BY "Date Received", "Type" 这应该统计分组的唯一实例[接收日期

看起来很简单的问题,我的大脑暂时僵住了,谷歌富帮不上忙

我想得到每天特定事件类型的计数。例如:

数据:

进入:

目前,我有一个简单的GROUPBY语句,它聚合了该行的总计数,而不是分成组。有人能帮忙吗?:)


谢谢大家!

这应计算分组的唯一实例
[接收日期]
[类型]

SELECT "Date Received", "Type", COUNT(*) AS Count
FROM YourTable
GROUP BY "Date Received", "Type"

这应该统计分组的唯一实例
[接收日期]
[类型]

SELECT "Date Received", "Type", COUNT(*) AS Count
FROM YourTable
GROUP BY "Date Received", "Type"
SELECT "Date Received", "Type", COUNT(*) AS Count
FROM YourTable
GROUP BY "Date Received", "Type"