[SQL] How to insert Images(bnp,png,etc) into Postgresql and how to retrive the inserted Imaged using C#.net

[venkat]

Dear All,

  I want   to insert Images(bnp,png,etc) into Postgresql and how to retrieve
the inserted Imaged using C#.net.I do not know where to start? Any one can
help me.

 I am waiting for your great response.

Advanced Thanks,
Venkat.