SELECT qc.*, mc.sort AS chapter_sort, ( SELECT COUNT( qce.exam_id ) FROM question_chapter_exam qce WHERE qce.chapter_exam_id = qc.chapter_exam_id ) AS exam_num, ( SELECT COUNT( eq.question_id ) FROM question_chapter_exam qce LEFT JOIN exam_question eq ON qce.exam_id = eq.exam_id WHERE qce.chapter_exam_id = qc.chapter_exam_id ) AS question_num FROM question_module_chapter mc LEFT JOIN question_chapter qc ON mc.chapter_exam_id = qc.chapter_exam_id WHERE 1=1 AND qc.chapter_exam_id IN ( SELECT qce.chapter_exam_id FROM question_chapter_exam qce LEFT JOIN exam e ON qce.exam_id = e.exam_id WHERE e.exam_paper_id = #{paperId} ) AND mc.module_exam_id = #{moduleExamId} ORDER BY mc.sort SELECT qc.*, mc.sort as chapter_sort FROM question_module qm LEFT JOIN question_module_chapter mc ON mc.module_exam_id = qm.module_exam_id LEFT JOIN question_chapter qc ON mc.chapter_exam_id = qc.chapter_exam_id WHERE qm.module_exam_id =#{moduleExamId} AND mc.chapter_exam_id IN ( SELECT chapter_exam_id FROM user_exam_record WHERE user_id = #{userId} AND goods_id = #{goodsId} AND module_exam_id = #{moduleExamId} AND chapter_exam_id > 0 GROUP BY chapter_exam_id) delete from question_module_chapter where module_exam_id = #{newModuleExamId} and tenant_id = #{newTenantId}