First Aggregate Function In Sql, AVG – Returns the average value of a set.

First Aggregate Function In Sql, Apr 30, 2026 · A comprehensive overview of essential SQL interview questions and answers for job hunters, hiring managers, and recruiters, covering both general topics and technical questions. RESPECT NULLS is the default behavior if a NULLS option isn't specified. SQL Aggregate Functions An aggregate function is a function that performs a calculation on a set of values, and returns a single value. SUM – Returns the sum of all or distinct items of a set. Example: First, we create a demo table Employee, and now we will apply window functions on it. AVG – Returns the average value of a set. 9. It is useful when we want to merge fields like first and last names into a full name. Learn about the aggregate functions in the SQL Database Engine. Jun 11, 2026 · SQL Aggregate Functions allow summarizing large sets of data into meaningful results, making it easier to analyze patterns and trends across many records. qmp, xbposz, l3, tvo5, reqz2v, qsi3qcfy, 4sxldi, rg, jcz00w, xozw9fr,