I want to design a query to compute some returns for stock data and in searching the 'SQL Server Books Online' I find a very small and not so helpful at all help section on the lead and lag functions.

In recent releases of SQL Server, Microsoft has delivered a great deal of feature enhancements and performance improvements. This rapid delivery has been facilitated by some development changes at ...

SQL Window functions are an advanced type of function in SQL. In this post, you will learn about what SQL window functions are and how they can be used or work. What are SQL window functions? SQL ...

In the second part of this interview with Microsoft partner architect Conor Cunningham, we talk about Microsoft's use of telemetry to improve SQL Server and Azure SQL. We also discuss the changes the ...