How to remove single quotes in Oracle PIVOT

For example, below is the query to get pivot table from ORDERS table

SELECT * FROM
(
  SELECT customer, product
  FROM orders
)
PIVOT
(
  COUNT(product)
  FOR product IN ('A', 'B', 'C')
)
ORDER BY customer;

In this example, the PIVOT clause would return the following results:

customer | 'A'|'B'|'C'

---------------------------

JACK | 5 | 8 | 4

MARY | 2 | 3 | 6

WILL | 7 | 6 | 3

Now, to remove the single quotes from the heading, simply do the below change, a small change actually.

SELECT * FROM
(
  SELECT customer, product
  FROM orders
)
PIVOT
(
  COUNT(product)
  FOR product IN ('A' as "A", 'B' as "B", 'C' as "C")
)
ORDER BY customer;

So, by doing the above change, you will get exactly what you want

customer | A | B | C

---------------------------

JACK | 5 | 8 | 4

MARY | 2 | 3 | 6

WILL | 7 | 6 | 3