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。

对 DBA 来说，慢 SQL 是棘手的，往往不是看懂一条 EXPLAIN，而是这件事总在重复。 今天业务报警，你先上机器翻慢日志；找到可疑 ...

阿里妹导读MySQL主从复制延迟严重损害实例可用性和只读实例时效性。AliSQL引入AI诊断能力，轻松定位延迟原因；针对线上最典型的四类场景，AliSQL ...

Despite its steep licensing costs, SQL Server continues to prove its worth over open-source alternatives in some key areas. SQL Server is an expensive part of your IT stack -- SQL Server Enterprise ...

Out of all the programming languages you need to learn in the IT industry, SQL is one of the most important. SQL is so integral to modern big data access and organization processes that it’s never a ...

证券之星消息，根据天眼查APP数据显示建设银行（601939）新获得一项发明专利授权，专利名为“语法解析器生成方法、SQL访问控制方法、装置及设备”，专利申请号为CN202210299557.4，授权日为2026年3月24日。

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 ...

SQL, the Structured Query Language, remains one of the most widely used programming languages, coming in fourth in Stack Overflow’s research for 2023. Just over half (51.52%) of professional ...

Every day, businesses depend on data to operate. Customer orders, quotes for new business, conversations around products, campaigns for marketing—pretty much every business process today is based on ...