Learn how to use window functions and aggregate functions in SQL, compare their benefits and drawbacks, and see some examples of how to apply them.

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 ...

SQL defines aggregate functions which can summarize a whole column using an aggregative operation. The two most basic aggregate functions are SUM and COUNT, which can sum the total value of a column ...