Examine the table:
Table name: PRODUCTS
Schema: SCOTT
Tablespace: USERS
Organization: Standard (Heap Organized)
This table contains 20 rows. In the data that has been entered, the PROD_ID column contains only single-digit
values, PROD_NAME has a maximum of five characters, and PROD_RATE has four-digit values for all rows.
Which two statements are true regarding the modifications that can be performed to the structure of the
PRODUCTS table?
A.
PROD_NAME size can be increased from five to 10 characters.
B.
PROD_ID can be changed from CHAR to NUMBER data type.
C.
PROD_RATE size can be changed from NUMBER(4) to NUMBER(6, 2).
D.
New columns can be added only if they have a NOT NULL constraint.
E.
None of the existing columns can be dropped because they contain data.