NULL and default!!

Question

hi,
I have created a table as below.
CREATE TABLE student
(      Rollno      CHAR(8),
     Name          VARCHAR2(20),
Fees          DECIMAL(12,2) DEFAULT 100.00
can someone please explain the effects of the following insert statements.
a] insert into student values('c123','Patrick');
b] insert into student values('c123','Patrick',NULL);
Will both of them have different effects on the values entered into the table? And what will be entered into the columns in both the cases.
Message was edited by:
user593212
Message was edited by:
user593212

Answer 1

SQL> CREATE TABLE student
  2  ( Rollno CHAR(8),
  3  Name VARCHAR2(20),
  4  Fees DECIMAL(12,2) DEFAULT 100.00
  5  );
Table created.
SQL> insert into student(rollno,name) values('c123','Patrick');
1 row created.
SQL> select * from student;
ROLLNO   NAME                       FEES
c123     Patrick                     100