package com.example.springboot.mapper;
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import org.apache.ibatis.annotations.*;
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import com.example.springboot.entity.alarmmg;
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import java.util.List;
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@Mapper
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public interface AlarmMapper {
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@Select("SELECT * FROM alarmmg")
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List<alarmmg> selectAll();
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@Select("SELECT count(*) FROM alarmmg where endTime is null and content=#{content}")
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short selectnullti(String content);
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@Insert("INSERT INTO `canadames`.`alarmmg`( `content`,`timeon`) VALUES ( #{content},now())")
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void Insertalarm(String content);
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@Insert("UPDATE `canadames`.`alarmmg` set endTime= now() where endTime is null and content=#{content}")
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void updatealarm(String content);
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}
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