Structured Query Language (SQL) - Cultural View of Technology

PL/SQL 80
BEGIN
END;
FOR RecordIndex IN cursor_person
LOOP
DBMS_OUTPUT.PUT_LINE(RecordIndex.person_code);
END LOOP;
The concept of the person_code within the FOR-loop gets expressed with dot-notation ("."):
RecordIndex.person_code
Example
declare
begin
end;
Output:
0
1
2
3
4
5
6
7
8
9
10
var number;
/*N.B. for loop variables in pl/sql are new declarations, with scope only inside the loop */
for var in 0 .. 10 loop
end loop;
dbms_output.put_line(var);
if (var is null) then
else
end if;
var is null
dbms_output.put_line('var is null');
dbms_output.put_line('var is not null');