Sql Aggregate

Gotcha! SQL Aggregate Functions and NULL - SQL Server Central

Recently, I noticed a lot of questions about how SQL aggregate functions handle NULL values on a discussion board for an article here at SQL Server Central.

SQL Aggregate Functions

SQL Aggregate Functions. How to work with SQL Aggregate Functions - MIN, MAX, AVG, COUNT, SUM.

Aggregate Functions in SQL

Summarize data with SQL's SUM, AVG, MIN, MAX and COUNT functions. Your About.com Guide to Databases walks you through the process.

SQL Aggregate Functions

This section introduces how aggregate functions are used in SQL.

SQL Tutorial - Learn SQL

The SQL COUNT aggregate function is used to count the number of rows in a database table The SQL GROUP BY statement is used along with the SQL aggregate.

SQL Functions

There are several basic types and categories of functions in SQL. The basic types of functions are:. Aggregate Functions; Scalar functions.

Aggregate Functions in SQL

SQL provides several aggregate functions to assist with data summarization. In this article we explore the usage of SUM, AVG, COUNT, MIN and MAX.

CREATE AGGREGATE (Transact-SQL)

Creates a user-defined aggregate function whose implementation is defined in a class of an assembly in the Microsoft .NET Framework. For the SQL Server 2005.

SQL GROUP BY and HAVING

GROUP BYwas added to SQL because aggregate functions (like SUM) return the aggregate of all column values every time they are called, and without the.

CREATE AGGREGATE (Transact-SQL)

Creates a user-defined aggregate function whose implementation is defined in a class of an assembly in the Microsoft .NET Framework. For the SQL Server 2005.