<?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.moral.mapper.AlarmMapper">
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<select id="countByTimes" resultType="java.util.Map">
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select
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<if test="format !=null">
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DATE_FORMAT(time,#{format}) as time,
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</if>
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COUNT(*) as count from alarm
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<where>
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<if test="start != null">
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time >= #{start}
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</if>
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<if test="end != null">
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and time
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<![CDATA[
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<=
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]]> #{end}
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</if>
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</where>
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<if test="format !=null">
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GROUP BY DATE_FORMAT(time,#{format}) ;
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</if>
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</select>
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</mapper>
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