This function is used with the SQL SELECT statement. Let's take a simple example: If you have a record of the voters in the selected area and want to count the number of voters, then it is very ...

In this article, you will learn how to use the COUNT function in Teradata SQL, what are the different options and parameters, and how to avoid some common pitfalls and errors.

APPROX_COUNT_DISTINCT( expression ) evaluates an expression for each row in a group, and returns the approximate number of unique non-null values in a group. This function is designed to provide ...