postgresqlHow do I use PostgreSQL float type?

PostgreSQL float type is a data type used to store real numbers with precision up to 8 bytes. It is a variable precision type, which means that the actual number of bytes allocated to store the number depends on its value.

Example code

CREATE TABLE float_example (
    id serial PRIMARY KEY,
    float_number float
);

INSERT INTO float_example (float_number)
VALUES (3.1415);

SELECT * FROM float_example;

Output example

 id | float_number
----+--------------
  1 |       3.1415
(1 row)

In the example code above:

1. CREATE TABLE float_example creates a table called float_example with an id column of type serial as primary key and a float_number column of type float.
2. INSERT INTO float_example inserts a row into the table with a value of 3.1415 for the float_number column.
3. SELECT * FROM float_example retrieves all the records from the table.

Helpful links

• PostgreSQL Documentation - Float Type
• PostgreSQL Documentation - Data Types

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