Created
June 5, 2018 17:09
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PLSQL - Function - Increment an Integer
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-- Solution 1 | |
CREATE OR REPLACE FUNCTION increment(i integer) RETURNS integer as $$ | |
BEGIN | |
return i + 1; | |
END; | |
$$ LANGUAGE plpgsql; | |
-- Soluution 2 | |
CREATE FUNCTION increment(i integer) RETURNS integer | |
AS 'select $1 + 1;' | |
LANGUAGE sql; | |
-- Solution 3 | |
CREATE FUNCTION increment (IN age integer, OUT integer) | |
AS 'SELECT age + 1' | |
LANGUAGE SQL; | |
-- Solution 4 | |
CREATE FUNCTION increment(@age INT) { | |
returns INT as | |
Begin | |
return @age + 1; | |
end; |
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