How to save show and delete favourite places in android app using sqlite db?

I create a registertable in SQLite db and can I use this same table to save the favourite places related to that particular user. Can anyone tell me how to do that

public static final int DATABASE_VERSION = 2;

//private static final String KEY_ROWID = "_id";
//sql command   to create  the table
private static final String REGISTER_TABLE_CREATE ="Create table " + registertable + "("+VisitID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + ColName + " VARCHAR(15) ," +ColAdd   + " VARCHAR(15) ," + ColEmailid     + " VARCHAR(15),"+
ColContact   + " INT(25)," +
ColPassword      + " VARCHAR(15) ," +

Coldateofbirth   + " VARCHAR(15)) ";

Below is the coding where I click on imagebutton to save the favourite What coding should i do in this part ?

  imstar.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {
            // TODO Auto-generated method stub
            if(turnoffon==0)
            {
                //Saved to database
            imstar.setImageResource(R.drawable.stars);
             //   db.open();  //open  the   db   coonection
                //favplace=get

               // Cursor c = db.getEmpValues();
           //  String getplace= String.valueOf(place_id);
             //  String c1=c.getString(c.getColumnIndex(db.ColEmailid));
                // db.insert();
                Toast.makeText(getApplicationContext(), "Saved to Favorits", Toast.LENGTH_LONG).show();
            turnoffon=1;
            }
            else
            {
                //delete from database
            imstar.setImageResource(R.drawable.starwithoutglow);
            Toast.makeText(getApplicationContext(), "Delete from favorits", Toast.LENGTH_LONG).show();
            turnoffon=0;
            }
        }
    });
    new backk().execute();
}