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miTokm (Function)

This converts the input given in miles into kilometers.


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

Query Parameters

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

Example 1

SELECT unitconversion:miTokm(1) AS kilometers;

This query uses the unitconversion:miTokm() function to convert the value of 1 mile into its equivalent value in kilometers. The conversion result is approximately 1.6 kilometers.

Example 2

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

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

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

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

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