Learn how to use the COUNT function in SQL to count records in different ways. Find out how to count the total, distinct, conditional, and grouped rows in SQL.

Aprenda a usar la función COUNT en SQL para contar registros de diferentes maneras. Averigüe cómo contar las filas totales, distintas, condicionales y agrupadas en SQL.

SQL is a tool that is widely used in the manipulation of data and featuring in the relational database. They are applied in querying, manipulating as well as reporting data and it is commonly used by ...

Query a count of the number of cities in CITY having a Population larger than 100,000.

The Count function helps you easily create a query that, based on any criteria, sums up the number of Access records you have. Here's how to use it.

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 ...