ccic-backend/ccic-exam/src/main/resources/mappers/ExamStatisticsMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ccic.safeliab.dao.ExamStatisticsMapper">
    <select id="getQuestionCount" resultType="java.lang.Integer">
        select count(1) from ex_question_categories
        where status = 1
        and is_deleted = 0
    </select>
    <select id="getPaperCount" resultType="java.lang.Integer">
        select count(1) from ex_exam_papers
        where paper_status = 1
          and is_deleted = 0
    </select>
    <select id="getExamCount" resultType="java.lang.Integer">
        select count(1) from ex_exam_info
        where status = 1
          and publish_status = 1
          and is_deleted = 0
    </select>
    <select id="getIndustryDimensionData" resultType="java.util.Map">
        <![CDATA[
        SELECT
            COUNT ( q.ID ) AS "value",
            ( ind.industry_name || ': ' || COUNT ( q.ID ) || ' 条' ) AS "name"
        FROM
            tbl_industry ind
                LEFT JOIN ex_question_categories q ON q.industry_id = ind.industry_id
                AND q.is_deleted = 0
                AND q.status = 1
        WHERE
            ind.status = 1
        GROUP BY
            ind.industry_id,
            ind.industry_name
        ORDER BY
	        ind.industry_id
        ]]>
    </select>
    <select id="getAqServiceDimensionData" resultType="java.util.Map">
     <![CDATA[
            SELECT
                COUNT ( q.ID ) AS "value",
                ( dict.dict_value || ': ' || COUNT ( q.ID ) || ' 条' ) AS "name"
            FROM
                ex_dict dict
                    LEFT JOIN ex_question_categories q ON q.service_type_id = dict.dict_key
                    AND q.is_deleted = 0
                    AND q.status = 1
            WHERE
                dict.code = 'serviceTypeDict'
              AND dict.is_deleted = 0
              AND dict.parent_id <> 0
            GROUP BY
                dict.dict_key,
                dict.dict_value
            ORDER BY
                dict.dict_key
            ]]>
    </select>
    <select id="getExamTableData" resultType="java.util.Map">
        <![CDATA[
                -- 定义 CTE exam_Count，统计符合条件的考试数量
                WITH exam_Count AS (
                    SELECT COUNT(1) AS "count"
                    FROM ex_exam_info
                    WHERE status = 1
                      AND publish_status = 1
                      AND is_deleted = 0
                ),
        -- 定义 CTE scores，计算每个考试记录的得分比例和用时
                     scores AS (
                         SELECT
                             score.total_score / papers.total_score AS score,
                             score.exam_time_spent AS time_spent
                         FROM
                             ex_exam_scores score
                                 LEFT JOIN ex_exam_info info ON info.ID = score.exam_id
                                 AND info.publish_status = 1
                                 AND info.is_deleted = 0
                                 LEFT JOIN ex_exam_papers papers ON papers.ID = info.paper_id
                                 AND papers.is_deleted = 0
                         WHERE
                             score.is_deleted = 0
                     )
        -- 主查询，统计相关信息
                SELECT
                    1 as "key",
                    (SELECT "count" FROM exam_Count) AS "examTimes",
                    (SELECT COUNT(1) FROM scores) AS "participants",
                    (SELECT AVG(time_spent) FROM scores) AS "averageTime",
                    ROUND((SELECT COUNT(1) FROM scores WHERE score >= 0.6) * 100.0 / (SELECT COUNT(1) FROM scores), 2) AS "passRate"
        ]]>
    </select>
    <select id="getScoreDistributionData" resultType="java.util.Map">
       <![CDATA[
        -- 定义 CTE scores，用于获取考试成绩相关信息
        WITH scores AS (
            SELECT
                score.total_score,
                papers.total_score,
                score.total_score / papers.total_score AS grade,
                info.ID
            FROM
                ex_exam_scores score
                    LEFT JOIN ex_exam_info info ON info.ID = score.exam_id
                    AND info.publish_status = 1
                    AND info.is_deleted = 0
                    LEFT JOIN ex_exam_papers papers ON papers.ID = info.paper_id
                    AND papers.is_deleted = 0
            WHERE
                score.is_deleted = 0
        ),
             -- 定义 CTE total，用于计算总人数
             total AS (
                 SELECT count(1) headcount
                 FROM
                     ex_exam_scores score
                         LEFT JOIN ex_exam_info info ON info.ID = score.exam_id
                         AND info.publish_status = 1
                         AND info.is_deleted = 0
                         LEFT JOIN ex_exam_papers papers ON papers.ID = info.paper_id
                         AND papers.is_deleted = 0
                 WHERE
                     score.is_deleted = 0
             )
        -- 主查询部分，计算不同成绩区间的比例并精确到小数点后两位
        SELECT
            ROUND(COUNT(1) / (SELECT headcount FROM total) * 100, 2) AS "value" ,
            '优秀占比: '||ROUND(COUNT(1) / (SELECT headcount FROM total) * 100, 2) || '%' AS "name"
        FROM
            scores
        WHERE
            grade >= 0.9
        UNION ALL
        SELECT
            ROUND(COUNT(1) / (SELECT headcount FROM total) * 100, 2) AS "value" ,
            '合格占比: '||ROUND(COUNT(1) / (SELECT headcount FROM total) * 100, 2) || '%'AS "name"
        FROM
            scores
        WHERE
            grade < 0.9
          AND grade >= 0.6
        UNION ALL
        SELECT
            ROUND(COUNT(1) / (SELECT headcount FROM total) * 100, 2) AS "value" ,
            '需努力占比: '||ROUND(COUNT(1) / (SELECT headcount FROM total) * 100, 2) || '%'AS "name"
        FROM
            scores
        WHERE
            grade < 0.6;
        ]]>
    </select>
    <select id="getPaperDistributionData" resultType="java.util.Map">
        SELECT COUNT
               ( 1 ) AS "value",
               ind.industry_name || ': '|| COUNT( 1 ) || ' 套' AS "name"
        FROM
            tbl_industry ind
                left join ex_exam_papers papers
                          on papers.industry_id = ind.industry_id
                              and papers.is_deleted = 0
                              AND papers.paper_status = 1
        WHERE
            ind.status = 1
        GROUP BY
            ind.industry_id ,
            ind.industry_name
        ORDER BY
            ind.industry_id
    </select>
    <select id="getExamAnswerDetails" resultType="java.util.Map">

    </select>
</mapper>