16 lines
540 B
XML
16 lines
540 B
XML
<?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="org.dromara.system.mapper.TDeviceMapper">
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<resultMap id="deviceStaticsResult" type="org.dromara.system.domain.vo.DeviceStaticsVo">
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</resultMap>
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<select id="countByDs" resultMap="deviceStaticsResult">
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SELECT SUBSTR(zzjgdm,1,4) zzjgdm,count(*) co from t_device GROUP BY SUBSTR(zzjgdm,1,4) HAVING SUBSTR(zzjgdm,1,4) is not null
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</select>
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</mapper>
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