Learn what aggregate functions are, how to use them in SQL queries, and why they are useful for BI. Find examples of common scenarios and calculations. Agree & Join LinkedIn ...

Imagine writing an application for a restaurant owner to track her customers and transactions, or an app that an e-commerce company uses to store users, transactions and shopping behaviors. Think ...

Hi!I often run queries on my company’s Data Warehouse, which runs DB2. Due to the nature of my permissions, I cannot create Views or new Tables – thus, everything generally has to be done in a ...

Aggregate window functions are used to perform operations on sets of rows in a window(s). They include SUM() , MAX() , COUNT() , and others. Rank window functions are used to rank rows in a window(s).

Aggregate functions are used to perform calculations on a set of values and return a single summarized result. They are commonly used in data analysis to get insights from large datasets. Common ...

I'm trying to come up with a query format that will allow me to return multiple rows of aggregate data grouped by DATE, but the date values would be BETWEEN certain intervals.<BR><BR>As in, the ...