StudentMapper.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.jevon.mapper.StudentMapper" >
<resultMap id="BaseResultMap" type="com.jevon.model.Student" >
<id column="id" property="id" jdbcType="INTEGER" />
<result column="open_id" property="analyseId" jdbcType="INTEGER" />
<result column="school_name" property="schoolName" jdbcType="VARCHAR" />
<result column="class_name" property="className" jdbcType="VARCHAR" />
<result column="student_name" property="studentName" jdbcType="VARCHAR" />
<result column="student_number" property="studentNumber" jdbcType="VARCHAR" />
<result column="analyse_id" property="analyseId" jdbcType="INTEGER" />
<result column="score" property="score" jdbcType="FLOAT" />
<result column="create_time" property="createTime" jdbcType="TIMESTAMP" />
</resultMap>
<insert id="insertBatch" parameterType="java.util.List">
insert into sz_learn_student (school_name, class_name,student_name,
student_number,analyse_id,score,create_time)
values
<foreach collection="list" item="emp" separator=",">
(#{emp.schoolName},#{emp.className},#{emp.studentName},
#{emp.studentNumber},#{emp.analyseId},#{emp.score},#{emp.createTime})
</foreach>
</insert>
<select id="selectByStudent" parameterType="com.jevon.model.Student" resultMap="BaseResultMap">
select * from sz_learn_student where 1=1
<if test="analyseId != 0">
and analyse_id = #{analyseId}
</if>
<if test="schoolName != null">
and school_name = #{schoolName}
</if>
<if test="className != null">
and class_name = #{className}
</if>
order by score desc
</select>
<select id="selectCountByScore" parameterType="com.jevon.model.Student" resultType="java.lang.Integer">
select count(1) from sz_learn_student where 1=1
<if test="analyseId != 0">
and analyse_id = #{analyseId}
</if>
<if test="schoolName != null">
and school_name = #{schoolName}
</if>
<if test="className != null">
and class_name = #{className}
</if>
and score <![CDATA[ >= ]]> #{begin} and score <![CDATA[ < ]]> #{end}
</select>
<select id="selectClassNameBySchool" parameterType="com.jevon.model.Student" resultType="java.lang.String">
select DISTINCT(class_name) from sz_learn_student where 1=1
and analyse_id = #{analyseId}
and school_name = #{schoolName}
</select>
<select id="selectMaxScore" parameterType="com.jevon.model.Student" resultType="java.lang.Double">
select max(score) from sz_learn_student where 1=1
<if test="analyseId != 0">
and analyse_id = #{analyseId}
</if>
<if test="schoolName != null">
and school_name = #{schoolName}
</if>
</select>
<select id="selectMinScore" parameterType="com.jevon.model.Student" resultType="java.lang.Double">
select min(score) from sz_learn_student where 1=1
<if test="analyseId != 0">
and analyse_id = #{analyseId}
</if>
<if test="schoolName != null">
and school_name = #{schoolName}
</if>
</select>
<select id="selectAvgScore" parameterType="com.jevon.model.Student" resultType="java.lang.Double">
select avg(score) from sz_learn_student where 1=1
<if test="analyseId != 0">
and analyse_id = #{analyseId}
</if>
<if test="schoolName != null">
and school_name = #{schoolName}
</if>
</select>
<select id="selectModeNumber" parameterType="com.jevon.model.Student" resultType="java.lang.Double">
SELECT score FROM sz_learn_student
WHERE 1=1
<if test="analyseId != 0">
and analyse_id = #{analyseId}
</if>
<if test="schoolName != null">
and school_name = #{schoolName}
</if>
GROUP BY score
HAVING COUNT ( * ) >= (
SELECT MAX( cnt ) FROM
(
SELECT COUNT ( * ) cnt FROM sz_learn_student WHERE 1=1
<if test="analyseId != 0">
and analyse_id = #{analyseId}
</if>
<if test="schoolName != null">
and school_name = #{schoolName}
</if>
GROUP BY score ) tmp
)
</select>
<select id="selectMedian" parameterType="com.jevon.model.Student" resultType="java.lang.Double">
SELECT
avg(DISTINCT score)
FROM (
select T1.score from sz_learn_student T1 , sz_learn_student T2
WHERE 1=1
<if test="analyseId != 0">
and T1.analyse_id = #{analyseId}
</if>
<if test="schoolName != null">
and T1.school_name = #{schoolName}
</if>
<if test="analyseId != 0">
and T2.analyse_id = #{analyseId}
</if>
<if test="schoolName != null">
and T2.school_name = #{schoolName}
</if>
GROUP BY
T1.score
HAVING
sum(case when T2.score <![CDATA[ >= ]]> T1.score then 1 else 0 end) >= count(*)/2
and sum(case when T2.score <![CDATA[ <= ]]> T1.score then 1 else 0 end)>= count(*)/2) tmp
</select>
<select id="selectStdev" parameterType="com.jevon.model.Student" resultType="java.lang.Double">
select STDEV(score) from sz_learn_student where 1=1
<if test="analyseId != 0">
and analyse_id = #{analyseId}
</if>
<if test="schoolName != null">
and school_name = #{schoolName}
</if>
</select>
</mapper>