o get the missing date from database

[javastuden]

Hi all
Is there any way to get the missing date from database

for egs:
date customer
2009-01-01 1
2009-01-05 5

i want to get the values on 2009-01-02,02,03,04

for the resultset rs.next will give the value for 01and 05 how can i add these 02 03 04 valuses

Please help