на заметку, ибо целое дело это в яве, однака )
взято с http://www.java2s.com/Code/Java/Database-SQL-JDBC/Saveimagetoderbydatabase.htm


import java.io.ObjectOutputStream;
import java.sql.Blob;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

import javax.swing.ImageIcon;

public class EmployeeInit {
public static void main(String[] args) throws Exception {
Connection con;
con = DriverManager.getConnection("jdbc:derby://localhost:1527/" + "c:\\db\\employee");

PreparedStatement ps;
ps = con.prepareStatement("insert into employee(name,photo) " + "values(?,?)");
ps.setString(1, "Duke");

Blob blob = con.createBlob();
ImageIcon ii = new ImageIcon("duke.png");

ObjectOutputStream oos;
oos = new ObjectOutputStream(blob.setBinaryStream(1));
oos.writeObject(ii);
oos.close();
ps.setBlob(2, blob);
ps.execute();
blob.free();
ps.close();
}
}