Answer the following statements true (T) or false (F)1) 2) 3) 4)

1) A column with UNIQUE constraint may not contain a NULL value.
2) The NOT NULL constraint is defined at table level only.
3) A CHECK constraint cannot be written to check for NULL values.
4) Value 9999.99 is the largest possible value for a NUMBER(6,2) column.

1) F
2) F
3) F
4) T