tTokg (Function)

This converts the input given in tonnes into kilograms.

Syntax

<DOUBLE> unitconversion:tTokg(<INT|DOUBLE> p1)

Query Parameters

Name	Description	Default Value	Possible Data Types	Optional	Dynamic
p1	The value that needs to be converted from tonnes into kilograms.		INT DOUBLE	No	Yes

Example 1

SELECT unitconversion:tTokg(1) AS kilograms;

This query uses the unitconversion:tTokg() function to convert the value of 1 tonne into its equivalent value in kilograms. The conversion result is 1000.0 kilograms.

Example 2

CREATE STREAM InputStream (mass_t double);
CREATE SINK STREAM OutputStream (mass_t double, mass_kg double);

@info(name = 'massConversionQuery')
INSERT INTO OutputStream
SELECT mass_t, unitconversion:tTokg(mass_t) AS mass_kg
FROM InputStream;

In this example, an input stream called InputStream is created with a single attribute, mass_t, representing mass values in tonnes. Then, an output stream called OutputStream is defined, which will contain the original mass in tonnes as well as the converted mass in kilograms.

The massConversionQuery processes events from the InputStream. It uses the unitconversion:tTokg() function to convert the mass_t attribute from the InputStream into its corresponding value in kilograms, and this value is assigned to the mass_kg attribute in the OutputStream.

The query outputs the original mass in tonnes and the converted mass in kilograms for each event to the OutputStream.