After building and populating the Library Management System database, I performed various data analysis tasks using aggregate functions and grouping operations in SQL. To begin, I used functions like ...

Hi!<BR><BR>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 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 ...

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 ...

I realized how much easier my life would be if SQL had a mode() aggregate function. (I'm using it in the mathematical sense). I'm guessing that either I use SQL in a wierd way or there is a good ...