Separate parent and child field from the same table on a row in the oracle

Question

I have a table that has a father-son relationship:

code	product	Cod father	degree
1	banana pie	10	3
2	apple pie	11	3
10	banana	111	2
11	apple	111	2
111	fruit	-9999999	1

I need to bring the fields "children" and their "ancestors". The table I use goes up to grade 4. I need a result similar to this:

Code	Product	Cod Pai1	pai1	Cod Pai2	pai2 name
1	Banana pie	10	Banana	111	Fruit
2	Apple pie	11	mace	111	Fruit
10	Banana	111	fruit	-9999999
111	fruit	-999999

Currently I can reach this result by connecting the table to itself. Ex:

SELECT * FROM TABELA1 TAB1 
   INNER JOIN TABELA1 PAI1 ON TAB1.CODPAI = PAI1.CODIGO
   INNER JOIN TABELA1 PAI2 ON PAI1.CODPAI = PAI2.CODIGO

But the table in which I need to do this query is very large and the result was very heavy. Is there any way I can get to the sample result without making this table link x same table?