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FirstValue - script function

FirstValue() returns the value that was loaded first from the records defined by the expression, sorted by a group by clause.

Information noteThis function is only available as a script function.

Syntax:  

FirstValue ( expr)

Return data type: dual

Arguments:  

FirstValue arguments
Argument Description
expr The expression or field containing the data to be measured.

Limitations:  

If no text value is found, NULL is returned.

Examples and results:  

Add the example script to your document and run it. Then add, at least, the fields listed in the results column to a sheet in your document to see the result.

Examples and results
Example Result field Result value

TeamData:

LOAD * inline [

SalesGroup|Team|Date|Amount

East|Gamma|01/05/2013|20000

East|Gamma|02/05/2013|20000

West|Zeta|01/06/2013|19000

East|Alpha|01/07/2013|25000

East|Delta|01/08/2013|14000

West|Epsilon|01/09/2013|17000

West|Eta|01/10/2013|14000

East|Beta|01/11/2013|20000

West|Theta|01/12/2013|23000

] (delimiter is '|');

 

FirstValue1:

LOAD SalesGroup,FirstValue(Team) as FirstTeamLoaded Resident TeamData Group By SalesGroup;

SalesGroup

East

West

FirstTeamLoaded

Gamma

Zeta

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