Oracle常见游标使用

begin
for c_row in (select futu_exch_type,
futucode_type
from hs_user.fucontractmodel
where futu_exch_type = 'F3') loop
DBMS_OUTPUT.PUT_LINE(c_row.futu_exch_type||c_row.futucode_type);
end loop;
end;
/

declare
cursor c_fucontractmodel
is
select futu_exch_type,
futucode_type
from hs_user.fucontractmodel
where futu_exch_type = 'F3';
c_row c_fucontractmodel%rowtype;
begin
for c_row in c_fucontractmodel loop
DBMS_OUTPUT.PUT_LINE(c_row.futu_exch_type||c_row.futucode_type);
end loop;
end;
/

declare
cursor c_fucontractmodel
is
select futu_exch_type,
futucode_type
from hs_user.fucontractmodel
where futu_exch_type = 'F3';
c_row c_fucontractmodel%rowtype;
begin
open c_fucontractmodel;
loop
fetch c_fucontractmodel into c_row;
exit when c_fucontractmodel%NOTFOUND;
DBMS_OUTPUT.PUT_LINE(c_row.futu_exch_type||c_row.futucode_type);
end loop;
close c_fucontractmodel;
end;
/

set serveroutput on;
declare
v_iLoop int;
v_jLoop int;
begin
for v_iLoop in 1..3 loop
v_jLoop := 0;
for v_jLoop in 1..10 loop
dbms_output.put_line(v_jLoop);
if v_jLoop = 5 then
exit;
end if;
end loop;
end loop;
end;
/