ORACLE SQL%ROWCOUNT doesn't work inside a cursor fetch - oracle

Question

In my following code, I'm unable to get the inserted row count within a cursor fetch.
...
row_count NUMBER:= 0;
BEGIN
OPEN object_id_cur(id, c_bool);
LOOP
FETCH object_id_cur INTO l_object_id;
EXIT WHEN object_id_cur%NOTFOUND;
INSERT INTO table1(
id,
num
)
SELECT t2.r_object_id,
t2.num
FROM table2
WHERE t2.r_object_id = l_object_id.r_object_id;
row_count:= row_count + SQL%ROWCOUNT;
-- I also tried dbms_output.put_line(SQL%ROWCOUNT);
END LOOP;
CLOSE object_id_cur;
COMMIT;
dbms_output.put_line('insert count= ' || row_count || ' rows inserted...');
END;
My obtained result is: count = rows inserted... count is blank. If I move the insert outside the cursor fetch, then the row count works just fine. Is there a logical explanation for this? Thanks!

Answer 1

count is a reserved keyword. Use "count" or some other identifer say cnt. Also, add the missing semicolon at then end of the increment statement.
declare
cnt number := 0;
begin
. . .
cnt := cnt + SQL%ROWCOUNT;
. . .
Demo:
SQL> create table t (id int);
Table created.
SQL> declare
2 cursor c is
3 select level n from dual connect by level <= 100; -- produces 100 rows
4 n int;
5 cnt number := 0;
6 begin
7 open c;
8 loop
9 fetch c into n;
10 exit when c%notfound;
11 insert into t (id)
12 select n from dual union all
13 select n from dual; -- insert each value twice
14 cnt := cnt + sql%rowcount;
15 end loop;
16 close c;
17 dbms_output.put_line(cnt); -- should be 200
18 end;
19 /
200 -- correct output
PL/SQL procedure successfully completed.
SQL>
As you can see above, the SQL%rowcount works correctly. It could be that your below select query is not producing any rows.
SELECT t2.r_object_id,
t2.num
FROM table2
WHERE t2.r_object_id = l_object_id.r_object_id;

Answer 2

SQL%ROWCOUNT return the number of rows fetched/processed by the last DML executed. If the DML fails after fetching 1 row, due to any reason, SQL%ROWCOUNT will return only 1, the number of rows fetched/processed so far. It wont give you the total count. I did a simple PLSQL block and getting the SQL%ROWCOUNT working fine. Seems there is something else which is not working in your code.
declare
num number := 0;
begin
for i in 1 .. 10
loop
insert into a_table (id)
values (i);
num := num + sql%rowcount;
end loop;
dbms_output.put_line (num);
end;