PLSQL-Code-Samples/7. Looping with Cursors (Code Samples).html at main · sumaiya1996/PLSQL-Code-Samples · GitHub

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<pre class="prettyprint linenums">declare
  cursor c_emps is select * from employees where department_id = 30;
  v_emps c_emps%rowtype;
begin
  open c_emps;
  loop
    fetch c_emps into v_emps;
    dbms_output.put_line(v_emps.employee_id|| ' ' ||v_emps.first_name|| ' ' ||v_emps.last_name);
  end loop;
  close c_emps;
end;
---------------%notfound example
declare
  cursor c_emps is select * from employees where department_id = 30;
  v_emps c_emps%rowtype;
begin
  open c_emps;
  loop
    fetch c_emps into v_emps;
    exit when c_emps%notfound;
    dbms_output.put_line(v_emps.employee_id|| ' ' ||v_emps.first_name|| ' ' ||v_emps.last_name);
  end loop;
  close c_emps;
end;
---------------while loop example
declare
  cursor c_emps is select * from employees where department_id = 30;
  v_emps c_emps%rowtype;
begin
  open c_emps;
  fetch c_emps into v_emps;
  while c_emps%found loop
    dbms_output.put_line(v_emps.employee_id|| ' ' ||v_emps.first_name|| ' ' ||v_emps.last_name);
    fetch c_emps into v_emps;
    --exit when c_emps%notfound;
  end loop;
  close c_emps;
end;
---------------for loop with cursor example
declare
  cursor c_emps is select * from employees where department_id = 30;
  v_emps c_emps%rowtype;
begin
  open c_emps;
  for i in 1..6 loop
    fetch c_emps into v_emps;
    dbms_output.put_line(v_emps.employee_id|| ' ' ||v_emps.first_name|| ' ' ||v_emps.last_name);
  end loop;
  close c_emps;
end;
---------------FOR..IN clause example
declare
  cursor c_emps is select * from employees where department_id = 30;
begin
  for i in c_emps loop
    dbms_output.put_line(i.employee_id|| ' ' ||i.first_name|| ' ' ||i.last_name);
  end loop;
end;
---------------FOR..IN with select example
begin
  for i in (select * from employees where department_id = 30) loop
    dbms_output.put_line(i.employee_id|| ' ' ||i.first_name|| ' ' ||i.last_name);
  end loop;
end;</pre>