View the Exhibit and examine the structure of the ORD table.
Evaluate the following SQL statements that are executed in a user session in the specified
order:
CREATE SEQUENCE ord_seq;
SELECT ord_seq.nextval FROM dual;
INSERT INTO ord
VALUES (ord_seq.CURRVAL, 25-jan-2007′,101);
UPDATE ord
SET ord_no= ord_seq.NEXTVAL
WHERE cust_id =101;
What would be the outcome of the above statements?
A.
All the statements would execute successfully and the ORD_NO column would
contain the value 2 for the CUSTJD 101.
B.
The CREATE SEQUENCE command would not execute because the minimum value
and maximum value for the sequence have not been specified.
C.
The CREATE SEQUENCE command would not execute because the starting value of
the sequence and the increment value have not been specified.
D.
All the statements would execute successfully and the ORD_NO column would have
the value 20 for the CUST_ID 101 because the default CACHE value is 20.