From http://www.w3schools.com (Copyright Refsnes Data)

SQL Functions

previous next

SQL has many built-in functions for performing calculations on data.


SQL Aggregate Functions

SQL aggregate functions return a single value, calculated from values in a column.

Useful aggregate functions:


SQL Scalar functions

SQL scalar functions return a single value, based on the input value.

Useful scalar functions:

Tip: The aggregate functions and the scalar functions will be explained in details in the next chapters.


previous next

From http://www.w3schools.com (Copyright Refsnes Data)