src/main/resources/mapper/ExamrecordDao.xml

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<?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.dao.ExamrecordDao">

	<!-- 可根据自己的需求，是否要使用 -->
    <resultMap type="com.entity.ExamrecordEntity" id="examrecordMap">
        <result property="userid" column="userid"/>
        <result property="username" column="username"/>
        <result property="paperid" column="paperid"/>
        <result property="papername" column="papername"/>
        <result property="questionid" column="questionid"/>
        <result property="questionname" column="questionname"/>
        <result property="options" column="options"/>
        <result property="score" column="score"/>
        <result property="answer" column="answer"/>
        <result property="analysis" column="analysis"/>
        <result property="myscore" column="myscore"/>
        <result property="myanswer" column="myanswer"/>
    </resultMap>

	<select id="selectListVO"
		resultType="com.entity.vo.ExamrecordVO" >
		SELECT * FROM examrecord  examrecord         
        <where> 1=1 ${ew.sqlSegment}</where>
	</select>
	
	<select id="selectVO"
		resultType="com.entity.vo.ExamrecordVO" >
		SELECT  examrecord.* FROM examrecord  examrecord
 		<where> 1=1 ${ew.sqlSegment}</where>
	</select>

    <select id="selectListView"
		resultType="com.entity.view.ExamrecordView" >

		SELECT  examrecord.* FROM examrecord  examrecord 	        
        <where> 1=1 ${ew.sqlSegment}</where>
	</select>
	
	<select id="selectView"
		resultType="com.entity.view.ExamrecordView" >
		SELECT * FROM examrecord  examrecord <where> 1=1 ${ew.sqlSegment}</where>
	</select>
	
	<select id="selectGroupBy"
		resultType="com.entity.view.ExamrecordView" >
		select userid,paperid,papername,sum(myscore) myscore from examrecord     
        <where> 1=1 ${ew.sqlSegment}</where>
        group by userid,paperid,papername  
	</select>
	
</mapper>