select session_id from as_sessions where staff_id = :user_id select session_id from as_sessions where subject_id = :user_id select section_data_id from as_section_data where subject_id = :user_id select section_data_id from as_section_data where staff_id = :user_id select item_data_id from as_item_data where subject_id = :user_id select item_data_id from as_item_data where staff_id = :user_id update as_sessions set staff_id = :to_user_id where staff_id = :from_user_id update as_sessions set subject_id = :to_user_id where subject_id = :from_user_id update as_section_data set subject_id = :to_user_id where subject_id = :from_user_id update as_section_data set staff_id = :to_user_id where staff_id = :from_user_id update as_item_data set subject_id = :to_user_id where subject_id = :from_user_id update as_item_data set staff_id = :to_user_id where staff_id = :from_user_id