declare
cursor c is select * from short_input;
v_count number(2,2);
v_blood char(2) := 'B';
begin
for r in c
v_count:=1;
loop
if (r.no_of_blood_samples)>=1
then
dbms_output.put_line(r.sn||r.patient_id||' '||v_blood.v_count);
else c%notfound
then
raise no_data_found;
end if;
v_count:=v_count+1;
close c;
end loop;
end;

declare
cursor c is select * from short_input;
v_count number(2,2);
v_blood char(2) := 'B';
begin
for r in c
v_count:=1;
loop
if (r.no_of_blood_samples)>=1
then
dbms_output.put_line(r.sn||r.patient_id||' '||v_blood.v_count);
end if;
v_count:=v_count+1;
close c;
end loop;
end;

ORA-06550: line 16, column 4:
PLS-00103: Encountered the symbol ";" when expecting one of the following:

   loop
06550. 00000 -  "line %s, column %s:\n%s"
*Cause:    Usually a PL/SQL compilation error.

07:39:25 SQL> @test
07:39:30 SQL> DECLARE
07:39:30   2  
07:39:30   3  v_count number(2,2);
07:39:30   4  BEGIN
07:39:30   5  V_COUNT := 5;
07:39:30   6  V_COUNT := 10;
07:39:30   7  V_COUNT := 100;
07:39:30   8  end;
07:39:30   9  /
DECLARE
*
ERROR at line 1:
ORA-06502: PL/SQL: numeric or value error: number precision too large
ORA-06512: at line 5