One of the critical decisions facing companies embarking on big data projects is which database to use, and often that decision swings between SQL and NoSQL. SQL has the impressive track record, the ...

其中最具代表性的是累计分组操作。在分析设备运行状态时，经常需要计算“设备连续处于异常状态的时间长度”——这在传统 SQL 中需要复杂的窗口函数和递归查询。而在 DolphinDB 中，只需一行语句，就能自然表达这种累积逻辑。

SQL Server 2022: Here’s what you need to know Your email has been sent Three decades on, SQL Server is still a database workhorse that powers both an internal line ...