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18 lines
627 B
18 lines
627 B
<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTO Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.wbq.mapper.CourseMapper">
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<select id="getByCourseIdList" resultType="com.wbq.entity.Course">
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select * from course
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where course_id in
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<foreach collection="courseIdList" item="id" open="(" separator="," close=")">
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#{id}
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</foreach>
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</select>
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<select id="existsByCourseId" resultType="boolean">
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select exists (select 1 from course where course_id = #{courseId})
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</select>
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</mapper> |