Aggregate Functions

VII. Aggregate functions

Aggregate functions are built-in functions that is used to work with numeric, text and date/time, and currency data. The aggregate functions include sum, average, count, maximum, minimum, standard deviation, and variance.

VII.1. AVG

The AVG function is used to calculate average of field or column that has a number data type, date/time, or currency data type. For example, find average of unit price column of TblProduct table.

Microsoft Access 2007 AVG Function

VII.2. MAX

The maximum value of the field or column (number, date/time, or currency data type )can be calculated by the MAX function. For instance, find the highest price of TblProduct table.

Microsoft Access 2007 Max Function

VII.3. MIN

The minimum value of the field or column (number, date/time, or currency data type )can be calculated by the MIN function. For instance, find the cheapest price of TblProduct table.

Microsoft Access 2007 MIN Function

VII.4. COUNT

The COUNT function use to count row or record in the table. For example, count products that have quantity greater than twenty.

Microsoft Access 2007 COUNT Function

VII.5. SUM

The SUM function is used to calculate total value of field or column of a table. For instance, calculate the total amount of quantity of products starting with letter A.

Microsoft Access 2007 SUM Function

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