Is there a generic way to generate an arbitrary linear sequence in SQL?

Question

Is there a SQL query I can do that will generate a linear sequence like

1, 2, 3, 4, 5, 6, 7 ... x+1

or

2, 7, 12, 17, 22 ...         


        

Answer 1

In Oracle you can do:

select ROWNUM linear_sequence from dual CONNECT BY LEVEL <= x;

where x is the end of the sequence.