MYSQL语句，还不会写SQL？来我教你！

一、查询语句

mapper

List selectGroupDevice(@Param("groupDeviceDto") GroupDeviceDto groupDeviceDto, @Param("domainId") Long domainId);

xml

    
        select
        pi.sub_domain_name,
        di.physical_device_id,
        di.sub_domain_id,
        ......
        auth_status
        from ${domainId}_device_info di
        left join product_info pi on pi.sub_domain_id = di.sub_domain_id
        left join device_group_relation g on g.physical_device_id = di.physical_device_id
        
            g.group_id = #{groupDeviceDto.groupId}
            
                and di.physical_device_id like
                CONCAT('%',#{groupDeviceDto.physicalDeviceId},'%')
            
            
                and pi.sub_domain_name like
                CONCAT('%',#{groupDeviceDto.subDomainName},'%')
            
            
                and di.name like
                CONCAT('%',#{groupDeviceDto.name},'%')
            
        
    

二、添加

1.一个字段批量添加

mapper

Boolean insertGroupDevice(@Param("physicalDeviceId") List physicalDeviceId, @Param("domainId") Long domainId, @Param("groupId") Long groupId);

xml

insert into device_group_relation (group_id, domain_id, physical_device_id, bind_time)
        VALUES
        
            (#{groupId},#{domainId},#{device},now())
        

三、删除

1.批量删除

mapper

Boolean deleteDevice(@Param("groupDeviceDto") GroupDeviceIdDto groupDeviceDto);

xml

   delete
        from device_group_relation
        where group_id = #{groupDeviceDto.groupId}
        and physical_device_id in
        
            #{physicalDeviceId}