plpgsql function to generate random readable strings
- by Peter
Hi
I have written the following function but it's isn't returning anything when I run it. Can somebody help identify the issue?
CREATE OR REPLACE FUNCTION GenerateReadableRandomString (
len INT
)
RETURNS varchar
AS
$$
DECLARE
validchars VARCHAR;
randomstr VARCHAR;
randint INT;
i INT;
BEGIN
validchars := 'ABCEFHJKLMNPRTWXY3478';
i := 0;
LOOP
randint := ceil(random() * char_length(validchars));
randomstr := randomstr || substring(validchars from randint for 1);
i := i + 1;
EXIT WHEN i = len;
END LOOP;
RETURN randomstr;
END;
$$
LANGUAGE plpgsql;
