insert into yt_dyz_answer_record (record_id, question_id, item_id, duration, answer_time, user_id) values (#{recordId},#{questionId},#{itemId},#{duration},#{answerTime},#{userId}); SELECT ydq.question_id, ydq.question_content, ydq.question_reward, ydq.correct_item, ydqi.item_id, ydqi.item_header, ydqi.item_content, ydqi.question_id FROM yt_dyz_question ydq LEFT JOIN yt_dyz_question_item ydqi ON ydq.question_id = ydqi.question_id where app_id = #{appId} select question_id from yt_dyz_answer_record where user_id = #{userId} order by answer_time desc limit 1 select count(*) from yt_dyz_answer_record where user_id = #{userId} and DATE_FORMAT(answer_time, '%Y-%m-%d') = current_date() select record_id, question_id, item_id, duration, answer_time, user_id from yt_dyz_answer_record where user_id = #{userId} order by answer_time desc