SELECT u.user_nm AS studentName, i.ednst_nm AS institutionName, ui.grd_no AS grade, ui.scls_nm AS className, (SELECT COUNT(*) FROM problem_log pl WHERE pl.std_id = u.user_id) AS totalProblemsSolved, uc.stn_qna AS studentQuestion, hu.book_id AS bookId, hu.book_nm AS bookName, hu.unit_id AS unitId, hu.unit_nm AS unitName, hu.cmptn_tm AS completionTime FROM users u JOIN user_institution ui ON u.user_id = ui.user_id JOIN institution i ON ui.ednst_id = i.ednst_id JOIN user_class uc ON u.user_id = uc.user_id LEFT JOIN ( SELECT uu.user_id, b.book_id, b.book_nm, un.unit_id, un.unit_nm, uu.cmptn_tm FROM user_unit uu JOIN unit un ON uu.unit_id = un.unit_id JOIN book b ON un.book_id = b.book_id WHERE uu.user_id = #{userId} ORDER BY uu.cmptn_tm DESC LIMIT 3 ) hu ON u.user_id = hu.user_id WHERE u.user_id = #{userId} UPDATE user_class SET stn_qna = #{studentQuestion} WHERE user_id = #{userId}