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19 lines
815 B
19 lines
815 B
<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper
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PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.example.mapper.StudentCourseMapper">
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<select id="selectAll" resultType="com.example.entity.StudentCourse">
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select student_course.*, student.name as studentName from student_course
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left join student
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on student_course.student_id = student.id
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<where>
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<if test="name != null">and student_course.name like concat('%', #{name}, '%')</if>
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<if test="no != null">and student_course.no like concat('%', #{no}, '%')</if>
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<if test="studentId != null">and student_course.student_id = #{studentId}</if>
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</where>
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order by id desc
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</select>
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</mapper> |