个人练习

xiangpei

2024-05-11 d470757bba19143fd3fc441365fcbb2362dfd0f0

 src/main/resources/mapper/QuestionSubjectMapper.xml

@@ -64,4 +64,19 @@
              subject_id IN <foreach collection="subjects" open="(" separator="," close=")" item="subjectId">#{subjectId}</foreach>
    </select>

    <select id="getRandomQuestionId" resultType="com.mindskip.xzs.domain.vo.QuestionVO">
        SELECT
            distinct
            tq.id,
            tq.question_type as questionType,
            tq.difficult,
            ttc.content as contentJson
        FROM
             t_question_subject tqs
                 INNER JOIN t_question tq ON tqs.question_id = tq.id AND tq.deleted = 0 AND tqs.subject_id IN <foreach collection="subjectIds" open="(" separator="," close=")" item="subjectId">#{subjectId}</foreach>
                 INNER JOIN t_text_content ttc ON tq.info_text_content_id = ttc.id
        ORDER BY
             RAND() LIMIT #{questionNum}
    </select>

</mapper>