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。

Data work in 2026 asks for more than chart building. Professionals are expected to clean data, query databases, explain ...

Prasham Parikh is a freelancer at Android Police, and you can catch him writing how-to guides, features, and reviews on smartphones or pretty much anything that has a battery in it. His love for ...

In-demand skills include data analysis. It has been predicted that in 2026 businesses will place a high value on analysts who ...