Program to Generate Natural Numbers

https://www.computersprofessor.com/2016/04/program-to-generate-natural-numbers.html
GENERATE NATURAL NUMBERS ‘n’ USING DO WHILE
SQL>
ED natural ‘N’ number sql
DECLARE
N number := & n
i number := 1;
BEGIN
While [i<=n]
Loop
DBMS_output.put_line (i);
I := i+1
End
loop;
End;
OUTPUT:
N=15
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15