Insert to database
cm = Some_Object()
cm.column1 = column1_data
cm.column2 = column2_data
cm.column3 = column3_data
Session.add(cm)
Session.commit()
Update database
cs = Session.query(Some_Object).filter(and_(Some_Object.id == some_id,Some_Object.other_id == some_other_id)).one()
cs.column1 = "abc"
cs.column2 = "qwe"
cs.column3 = "asd"
Session.add(cs)
Session.commit()