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Marcos Silva
Marcos Silva

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Understanding the toFloat() Function

Introduction

In this blog post we will discuss about the toFloat() function. This function allows developers to convert various data types to floating-point numbers, enabling them to perform arithmetic operations, comparisons, and other calculations.

toFloat() function

This function converts a value and returns the value of floating point value. If any value are not convertible to floating point they will be null.

Example:

-- toFloat()
SELECT * FROM cypher('expr', $$
    RETURN toFloat(1.3)
$$) AS (toFloatList agtype);
 tofloatlist 
-------------
 1.3
(1 row)
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This function is in Apache AGE, and it helps the data manipulation of a database. Suppose you have a database table with a column that stores numeric values as strings, and you want to perform calculations or analysis on those values as floating-point numbers. However, some of the values may not be directly convertible to floats, this function can help you with it!!

Top comments (3)

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pauljlucas profile image
Paul J. Lucas

Why is this tagged #c?

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m4rcxs profile image
Marcos Silva

This function in AGE repository was developed in C language.

github.com/apache/age/pull/1016/

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Paul J. Lucas

But you're using it in SQL. What it was written in is irrelevant.