15_CodeWars.sql

-- QUESTION
-- For this challenge you need to create a basic Increment function which Increments on the age field of the peoples table.
-- The function should be called increment, it needs to take 1 integer and increment that number by 1.
-- You may query the people table while testing but the query must only contain the function on your final submit.
-- important: you must remove all comments when submitting the kata.
-- people table schema

-- id
-- name
--age



-- SOLUTION

CREATE OR REPLACE FUNCTION increment(i integer) RETURNS integer
AS $$ BEGIN RETURN i + 1; END; $$
LANGUAGE plpgsql;