SQL: Select a list of numbers from “nothing”

Question

What is a fast/readable way to SELECT a relation from \"nothing\" that contains a list of numbers. I want to define which numbers by setting a start and end value. I am usi

Answer 1

Thanks for all answers! Following the discussion I realized that using a numbers table is not too complicated and works well and fast on both/many platforms:

CREATE TABLE integers (i integer);
INSERT INTO integers (i) VALUES (0);
INSERT INTO integers (i) VALUES (1);
...
INSERT INTO integers (i) VALUES (9);
SELECT (hundreds.i * 100) + (tens.i * 10) + units.i AS x
FROM integers AS units
  CROSS JOIN integers AS tens
  CROSS JOIN integers AS hundreds

You just create this table once and can use it whenever you need a range of numbers.