<?xml version="1.0" encoding="UTF-8"?> 
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 
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<mapper namespace="com.zy.asrs.mapper.AppVersionMapper"> 
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    <!-- 通用查询映射结果 --> 
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    <resultMap id="BaseResultMap" type="com.zy.asrs.entity.AppVersion"> 
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        <id column="id" property="id" /> 
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        <result column="version" property="version" /> 
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        <result column="path" property="path" /> 
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        <result column="latest" property="latest" /> 
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        <result column="type" property="type" /> 
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    </resultMap> 
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    <select id="getLatestApp" resultMap="BaseResultMap"> 
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        select top 1 * from asr_app_version 
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        where type = #{type} and latest = 1 
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    </select> 
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    <update id="updateLatest"> 
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        update asr_app_version 
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        set latest = #{latest} 
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        where 1 = 1 
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        <if test="type != null || type != ''"> 
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            and type = #{type} 
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        </if> 
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    </update> 
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</mapper> 
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