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cmTomm (Function)

This converts the input given in centimeters into millimeters.


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

Query Parameters

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

Example 1


In this example, the unitconversion:cmTomm() function converts a value of 1 centimeter into its equivalent value in millimeters. The conversion result is 10.0 millimeters.

Example 2

CREATE STREAM InputStream (length_cm double);
CREATE SINK STREAM OutputStream (length_cm double, length_mm double);

@info(name = 'lengthConversionQuery')
INSERT INTO OutputStream
SELECT length_cm, unitconversion:cmTomm(length_cm) AS length_mm
FROM InputStream;

In this example, an input stream called InputStream is created with a single attribute, length_cm, representing lengths in centimeters. Then, an output stream called OutputStream is defined, which will contain the original length in centimeters as well as the converted length in millimeters.

The lengthConversionQuery processes events from the InputStream. It uses the unitconversion:cmTomm() function to convert the length_cm attribute from the InputStream into its corresponding value in millimeters, and this value is assigned to the length_mm attribute in the OutputStream.

The query outputs the original length in centimeters and the converted length in millimeters for each event to the OutputStream.