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kmToin (Function)

This converts the input given in kilometers into inches.


<DOUBLE> unitconversion:kmToin(<INT|LONG|FLOAT|DOUBLE> p1)

Query Parameters

NameDescriptionDefault ValuePossible Data TypesOptionalDynamic
p1The value that needs to be converted from kilometers into inches.INT LONG FLOAT DOUBLENoYes

Example 1

SELECT unitconversion:kmToin(1) AS inches;

This query uses the unitconversion:kmToin() function to convert the value of 1 kilometer into its equivalent value in inches. The conversion result is approximately 39370.08 inches.

Example 2

CREATE STREAM InputStream (distance_km double);
CREATE SINK STREAM OutputStream (distance_km double, distance_in double);

@info(name = 'distanceConversionQuery')
INSERT INTO OutputStream
SELECT distance_km, unitconversion:kmToin(distance_km) AS distance_in
FROM InputStream;

In this example, an input stream called InputStream is created with a single attribute, distance_km, representing distance values in kilometers. Then, an output stream called OutputStream is defined, which will contain the original distance in kilometers as well as the converted distance in inches.

The distanceConversionQuery processes events from the InputStream. It uses the unitconversion:kmToin() function to convert the distance_km attribute from the InputStream into its corresponding value in inches, and this value is assigned to the distance_in attribute in the OutputStream.

The query outputs the original distance in kilometers and the converted distance in inches for each event to the OutputStream.