Insert into by chunks - oracle

Question

I am trying to use insert into statement, but getting the error:
ORA-01628: max # extents (32765) reached for rollback segment _SYSSMU134_1882489978$
Increasing the UNDO tablespace is not an option, so I would like a way to insert those data by chunks (for example with 1 million rows at a time). Can someone help to rewrite this procedure in that way?
CREATE OR REPLACE PROCEDURE create_chunks (
p_source_table IN VARCHAR2,
p_table_name_chunk IN VARCHAR2,
p_chunks IN VARCHAR2
) AS
v_insert_sql CLOB;
BEGIN
v_insert_sql := 'INSERT INTO ' || p_table_name_chunk ||
' (rid, chunk_number) ' ||
'SELECT /*+ parallel(64) */ rowid rid,' ||
'mod( ora_hash(rowid), :p_chunks ) as chunk_number '
'FROM ' || p_source_table;
EXECUTE IMMEDIATE v_insert_sql USING p_chunks;
COMMIT;
END;
This v_insert_sql is failing with above mentioned error. I have working solution using the cursor fetching like that:
DECLARE
CURSOR v_cur IS SELECT /*+ parallel(64) */
rowid rid, mod( ora_hash(rowid), 20000 ) AS chunk_number
-- I need this table to be parametric name
FROM some_table;
TYPE t_sample IS TABLE OF v_cur%ROWTYPE;
v_sample t_sample;
v_row_limit CONSTANT NUMBER := 1000000;
BEGIN
OPEN v_cur;
LOOP
FETCH v_cur BULK COLLECT INTO v_sample LIMIT v_row_limit;
FORALL i IN v_sample.first .. v_sample.last
INSERT INTO chunk_table VALUES v_sample(i);
COMMIT;
EXIT WHEN v_cur%NOTFOUND;
END LOOP;
CLOSE v_cur;
END;
I can't move this cursor straight into the procedure as the table name is varying and I need it to be parametric as with cursor approach I have to repeat the same code for different tables. So the question is how to deal with this?

Answer 1

Basically, I was able to just past the whole chunks approach inside procedure as dynamic query, like that:
CREATE OR REPLACE PROCEDURE create_chunks (
p_source_table IN VARCHAR2,
p_table_name_chunk IN VARCHAR2,
p_chunks IN VARCHAR2
) AS
v_insert_sql CLOB;
BEGIN
v_insert_sql := '' ||
' DECLARE ' || CHR(10) ||
' CURSOR cur1 IS SELECT ' || CHR(10) ||
' /*+ parallel(64) full(tbn)*/ rowid rid,' || CHR(10) ||
' mod( ora_hash(rowid), :p_chunks ) AS chunk_number' || CHR(10) ||
' FROM ' || p_source_table || ' tbn;' || CHR(10) ||
' TYPE t_sample IS TABLE OF cur1%ROWTYPE;' || CHR(10) ||
' v_sample t_sample;' || CHR(10) ||
' v_row_limit CONSTANT NUMBER := 1000000;' || CHR(10) ||
' BEGIN' || CHR(10) ||
' OPEN cur1;' || CHR(10) ||
' LOOP' || CHR(10) ||
' FETCH cur1 BULK COLLECT INTO v_sample LIMIT v_row_limit;' || CHR(10) ||
' FORALL i IN v_sample.first .. v_sample.last' || CHR(10) ||
' INSERT INTO ' || p_table_name_chunk || ' VALUES v_sample(i);' || CHR(10) ||
' COMMIT;' || CHR(10) ||
' EXIT WHEN cur1%NOTFOUND;' || CHR(10) ||
' END LOOP;' || CHR(10) ||
' CLOSE cur1;' || CHR(10) ||
' END;';
EXECUTE IMMEDIATE v_insert_sql USING p_chunks;
COMMIT;
END;