Aaron McKinley is a writer, blogger, and video game enthusiast with over six years of experience in web content and many more in playing games until the wee hours of the morning. A passion for writing ...

-- Q1. Find the cumulative sum of sales for each salesperson ordered by the date of sale. select *, sum(amount) over (partition by salesperson_id order by sale_date ...

In the realm of data science, the ability to efficiently manipulate and analyze data is paramount. As we delve deeper into 2024, one of the most powerful tools at a data scientist's disposal remains ...

A collection of T-SQL scripts I written throughout my journey as a Data Analyst, Data Engineer, and BI Developer. They demonstrate the use of window functions, calculating dates, dynamic SQL, stored ...