create table employee
empid char(4) not null,
empname varchar2(15),
photo blob

i have created the above table . i have a scanned image of the employee , how would i pass the insert statement to insert the image into this table and does it store a pointer to the physical path or the image is actually stored in the table .i.e. if i delete the physically present image on the disk will it affect the data in the table.