HackerRank isn’t just a random collection of problems; they’ve organized their SQL section pretty well. You can find ...

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 ...

Like most databases created in the last few decades, SQL Server allows developers to extend the database by creating functions. But prior to the upcoming 2019 release, SQL Server’s support for scalar ...