10 lines
424 B
XML
10 lines
424 B
XML
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<?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.electromagnetic.industry.software.manage.mapper.EdFileInfoMapper">
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<select id="maxPrjId" resultType="java.lang.String">
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select max(id) from ed_file_info where length(id) = 6 and (parent_id is null or parent_id = "")
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</select>
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</mapper>
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