firstValue - Amazon QuickSight
SyntaxArgumentsExample
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firstValue

The firstValue function calculates the first value of the aggregated measure or dimension partitioned and sorted by specified attributes.

Syntax

The brackets are required. To see which arguments are optional, see the following descriptions.

firstValue
	(
	     aggregated measure or dimension, 
	     [ sort_attribute ASC_or_DESC, ... ],
	     [ partition_by_attribute, ... ] 
	)

Arguments

aggregated measure or dimension

An aggregated measure or dimension that you want to see the first value for.

sort attribute

One or more aggregated fields, either measures or dimensions or both, that you want to sort the data by, separated by commas. You can either specify ascending (ASC) or descending (DESC) sort order.

Each field in the list is enclosed in {} (curly braces), if it's more than one word. The entire list is enclosed in [ ] (square brackets).

partition by attribute

(Optional) One or more measure or dimensions that you want to partition by, separated by commas.

Each field in the list is enclosed in {} (curly braces), if it is more than one word. The entire list is enclosed in [ ] (square brackets).

Example

The following example calculates the first Destination Airport, sorted by Flight Date, partitioned by Flight Date ascending and Origin Airport.

firstValue(
    [{Destination Airport}],
    [{Flight Date} ASC],
    [
        {Origin Airport},
    	{Flight Date}
    ]
)