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SQL Query: 3 Methods for Calculating Cumulative SUM

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SQL provides various constructs for calculating cumulative sums, offering flexibility and efficiency in data analysis. In this article, we explore three distinct SQL queries that facilitate the computation of cumulative sums. Each query leverages different SQL constructs to achieve the desired outcome, catering to diverse analytical needs and preferences. Using Window Functions (e.g., PostgreSQL, SQL Server, Oracle) SELECT id, value, SUM(value) OVER (ORDER BY id) AS cumulative_sum  FROM your_table; This query uses the SUM() window function with the OVER clause to calculate the cumulative sum of the value column ordered by the id column. Using Subqueries (e.g., MySQL, SQLite): SELECT t1.id, t1.value, SUM(t2.value) AS cumulative_sum FROM your_table t1 JOIN your_table t2 ON t1.id >= t2.id GROUP BY t1.id, t1.value ORDER BY t1.id; This query uses a self-join to calculate the cumulative sum. It joins the table with itself, matching rows where the id in the first table is greater than or

IoT In Healthcare Top Skills You Need

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IoT and multimedia technologies have made their entrance into the healthcare field thanks to ambient-assisted living and telemedicine. ... Role of Smart Devices Smart devices, mobile Internet, and Cloud services contribute to the continuous and systematic innovation of Healthcare and enable cost-effective, efficient, timely, and high-quality ubiquitous medical services. Skills You  Need  Data Analytics  Cloud Computing  Security  Smart Device "Pervasive healthcare applications generate a vast amount of sensor data that have to be managed properly for further analysis and processing." The adoption of Cloud in this scenario leads to the abstraction of technical details, eliminating the need for expertise in, or control over, the technology infrastructure, and it represents a promising solution for managing healthcare sensor data efficiently. It further makes mobile devices suited for health information delivery, access, and communication, also on the go, enhancing medical

IoT application project need for BTech ECE students

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IOT Project IoT provides networking to connect people, things, applications, and data through the Internet to enable remote control, management, and interactive integrated services. IoT network scale, how large is it? Well, you have to think of this. The number of mobile devices exceed the number of people on Earth. In addition, predictions are made that there will be 50 billion 'things' connected to the Internet by 2020. So therefore, Internet of Things, this study is so important.  IoT Service Support. Some advanced IoT services will need to collect, analyze, and process segments of raw sensor information, raw sensor data, and we need to turn this into operational control information. Some sensor data types may have massive sizes, because the number of sensor IoT devices are so large.  #Introduction to Elecronic circuit analysis Also Read :   Project and Training on Io T So we need a platform that can collect and store all of this massive amount of

Smart Cities: 16 Top Job Roles You need to Know

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Why IOT skill you need: There are currently 18.2 billion connections to the internet throughout the world, and this will increase to 50 billion by 2020. The amount of data being transmitted via these connections has grown from 3ZB (3,000,000,000,000,000,000,000 bytes) in 2010 to 10ZB (10,000,000,000,000,000,000,000 bytes) this year, and it is predicted to reach 40ZB (40,000,000,000,000,000,000,000 bytes) by 2020. New Type of Skills Internet of everything has the potential to reach $19 trillion of value by 2022, and it "has the potential to grow global corporate profits by 21% in 2022".It's exponentially increasing. In a smart city, "every single sector has to get technology fluent and it has to get digital fluent to drive long-term prosperity,". This is an issue that both the public and private sectors need to get behind and to transform how they think and how to get people ready for the jobs to solve these problems. "We need new types of skills , ne

IoT Project in auto industry real guidelines you need to implement

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IoT enabling traffic management and control: Cars should be able to organise themselves in order to avoid traffic jams and to optimise drive energy usage. 1# Why IoT in auto industry This may be done in coordination and cooperation with the infrastructure of a smart city’s traffic control and management system. Additionally dynamic road pricing and parking tax can be important elements of such a system. Further mutual communications between the vehicles and with the infrastructure enable new methods for considerably increasing traffic safety, thus contributing to the reduction in the number of traffic accidents. IOT implementation #2 New Opportunities IoT enabling new transport scenarios (multi-modal transport): In such scenarios, e.g. automotive OEMs see themselves as mobility providers rather than manufacturers of vehicles. The user will be offered an optimal solution for transportation from Ato B, based on all available and suitable transport means. Thus, based

The tricky interview questions on IoT to read now

Internet of things is a tricky subject. I have given in this post on tricky interview questions asked for IoT Jobs. I have given simple to understand way. Mobile networks already deliver connectivity to a broad range of devices, enabling the development of innovative new services and applications. Why IoT you need This new wave of connectivity is going beyond tablets and laptops; to connected cars and buildings; TVs and game consoles; smart meters and traffic control; with the prospect of intelligently connecting almost anything and anyone. This is what the GSMA refers to as the “Connected Life”. As the Connected Life evolves, the number of mobile connections worldwide is set to rise dramatically to reach 10.5 billion by 2020, while the total number of connected devices across all access technologies could reach 25.6 billion1 . These devices will bridge the physical and digital worlds, enabling a new category of services that improve the quality of life and productivity of i

6 Most Popular IoT Protocols Currently Being Used

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The below is complete list of Protocols being used in Internet of things projects. CoAP: Constrained Application Protocol.  MQTT: Message Queue Telemetry Transport.  XMPP: Extensible Messaging and Presence Protocol.  RESTFUL Services: Representational State Transfer.  AMQP: Advanced Message Queuing Protocol  Websockets.  Related: Hot IT Skills by Udemy and Dice Conclusion The above list is advanced protocols being used in all machine to machine communication. Useful to know by IoT developers.

Internet of Things Top Communication Protocols

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The IoT envisions hundreds or thousands of end-devices with sensing, actuating, processing, and communication capabilities able to be connected to the Internet. These devices can be directly connected using cellular technologies such as 2G/3G/Long Term Evolution and beyond (5G) or they can be connected through a gateway, forming a local area network, to get connection to the Internet. --- The latter is the case where the end-devices usually form Machine to Machine (M2M) networks using various radio technologies, such as Zigbee (based on the IEEE 802.15.4 Standard), Wi-Fi (based on the IEEE 802.11 Standard), 6LowPAN over Zigbee (IPv6 over Low Power Personal Area Regardless the specific wireless technology used to deploy the M2M network, all the end-devices should make their data available to the Internet.  This can be achieved either by sending the information to a proprietary web server accessible from the Internet or by employing the cloud. #The role of protocols in IoT On

4 Upcoming New Protocols in Internet-of-things

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#4 Upcoming New Protocols in Internet-of-things: 4 New Protocols recently discussed in IoT conference: 6LoWPAN  for embedded device networking The  Constrained Access Protocol (CoAP) for low-power device communication. The  Time Synchronized Mesh Protocol (TSMP) for saving power in environments with limited wireless bandwidth. RPL, the IPv6 Routing Protocol for Low power and Lossy Networks, for defining and changing routes among devices. Another downside is the lack of Quality of Service (QoS). Making sure that messages are delivered is even more important in the IoT world than it was in the instant messaging world. If your alarm system doesn’t receive the message to turn itself on, then that vacation you’ve been planning could easily be ruined. What is CoAP CoAP is a simple request/response protocol (again, very similar to REST) that follows a traditional client/server model. Clients can make GET, PUT, POST, and DELETE requests to reso

5 Top Internet-of-things Quiz for Software Developers

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Internet-of-Things+Jobs+Skills A report from Business Indider- Here are a few of the key findings from the BI Intelligence report: The Internet of Things will be the largest device market in the world. We estimate that by 2019 it will be more than double the size of the smartphone, PC, tablet, connected car, and the wearable market combined. Related: Iot QUIZ from Courseera The IoT will result in $1.7 trillion in value added to the global economy in 2019. This includes hardware, software, installation costs, management services, and economic value added from realized IoT efficiencies. Device shipments will reach 6.7 billion in 2019 for a five-year CAGR of 61%. Revenue from hardware sales will be only $50 billion or 8% of the total revenue from IoT-specific efforts, as software makers and infrastructure companies will earn the lion's share. Related: Introduction to Internet of Things The enterprise sector will lead the IoT, accounting for 46% of device shipments

Industrial IoT what GE says to improve Productivity

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GE is once a top company in Heavy Engineering. This is to say items related to Thermal Power plants, Turbines, and maintenance. GE had always believed that since it knew the materials and the physics of its jet engines and medical scanners, no one could best it in understanding those machines. GE Industrial Internet  The aim is it should not share its data to third parties.    GE sets up its own IoT center.    GE is in IoT mood.    GE can improve operational efficiency by studying data from its machines like situated India and Russia. This is just an example.  GE is Targetting for Predictive Maintenace Improves industrial productivity Based on criticality productivity will zoom if maintenance carried in-time.

1 Best Group on IoT Career and Jobs

All freshers and experienced software developers can join in this group who wish to take their career on Internet-of-things(IoT).   IT JOBS on the Internet of Things Join Today to get the benefit . Imagine a world where billions of objects can sense, communicate and share information, all interconnected over public or private Internet Protocol (IP) networks. These interconnected objects have data regularly collected, analyzed and used to initiate action, providing a wealth of intelligence for planning, management and decision making. This is the world of the Internet of Things (IoT). Join the group Today. The IoT concept was coined by a member of the Radio Frequency Identification (RFID) development community in 1999, and it has recently become more relevant to the practical world largely because of the growth of mobile devices, embedded and ubiquitous communication, cloud computing and data analytics. Best on-line Training for the Internet of Things Since then, many visionaries

4 Key features to know in Industrial IoT

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The Industrial Internet is somewhat similar to the Internet of Things (IoT), sometimes even referred to as the “Industrial Internet of Things”. The general idea behind the IoT It is that many hi-tech and simple electronic devices would become interconnected with M2M (Machine-to-Machine) protocols, and therefore remotely controlled and relaying data to each other, without any manual input, or even equipped with ambient intelligence. Role of Smart Phones This idea is currently used in smart houses, and many seek wider applications. Its industrial counterpart can be viewed more from a resource and manufacturing perspective. Robots We can currently see such trends in mining, with automated trains, robotic hauling trucks, excavators, drills, and mineral processing plants, including remote fault, and malfunction control, calibration, and configuration for increased efficiency. Automation Despite the current and constant need for “on-site” human workers and operators, the t

Best Skills You Need to Become an IoT Developer

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The Internet of things is a new subject. In this area lot of development is going on. Recently, AWS ( Amazon web services ) developed a platform for the Internet of things. I want to share with you the best skills you need to become an IoT developer. Skills You Need to Become an IoT developer This is a big Question for IT freshers or experienced IT professionals what technologies they need to learn to start a career in this line.  As a general rule, I have found the following are general requirements for the Internet of things ( See Internet of things jobs here ). Java + multiple programming languages (Objective-C, C++), and interest in technologies such as Ruby, Scala, Clojure, Groovy, etc. Experience in javascript libraries in any combination of the following areas: jQuery, AngularJS, Backbone.js, Ember.js, Node.js, GWT Development experience in open source projects, especially large scale projects a plus. Experience developing at-home projects used by a medium to large size au

2 Top Differences Automation Vs Internet of Things

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Five reasons why IoT automation provides opportunities to deliver better product or Services. The data from sensors is a golden asset to derive benefits and to apply in products or services. Automation and IoT both are different  Automation The automation is based on the data collected from various devices and make it happen when something goes wrong you can say as automation. The best example is based on sensor generated data the automation tool take corrective action during course of flying from one country to other.   Internet of Things More mobile phones than fixed New architecture models (ex: Cloud computing) The new protocol (Ipv6) Everything is Sensor-laden More machines than people The Growth of Internet Usage The internet will be double in size every 5.32 years. More devices can be connected to the internet through IP. The internet limitation in IPv4 is 4 billion addresses. But, the internet limitation for IPv6 is 2^128. The total IP traffic ove

6 IT skills you need to be successful in IoT (Internet of things) Career

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[Jobs on IoT] The following 6 skills needed to become successful in IoT career: Business Intelligence : Collect, store, & analyze smart device data streams, sensor data analysis, data center management, predictive analytics, and programming skills in leading big data platforms Information Security : Vulnerability assessment, PKI security, ethical hacking, wireless network security, data ethics, and privacy policies UI/UX Design : Ability to develop effective, user-friendly interfaces, responsive web design, and service design Mobile Development : Knowledge of mobile apps that communicate with external hardware and sensors Hardware Engineering : Develop and install Wi-Fi™, Bluetooth®, and other connectivity solutions, computer-aided design, micro-electromechanical systems engineering, wireless sensor design, and quality assurance Networking : Design, maintain, and optimize large-scale traffic across secure, reliable, and redundant backbones that connect

Dynamics of "Code Halos" in the age Digital world

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[IoT -Code Halos Career] “Code Halos – the information that surrounds people, organizations, and devices – are today's digital fuel. Every click, swipe, and view, every interaction and transaction generates a halo of code – a "virtual self" – that's robust, powerful, and rich with meaning and insight. You can go with an excellent book on Code halos. Code Halos are a given in our personal lives; however, they are increasingly vital to every organization's future business success.” Research conducted by Cognizant's Center for the Future of Work reveals that organizations that create, share, and distill meaning from Code Halos are dominating their industries. The dynamics of Code Halos is realized in our ever-increasing daily interactions across the web like social media, e-commerce, file sharing, smartphone apps, and other computing devices. Moreover there are multiple layers of interdependencies between each of these interactions that create a unique

How Internet of things connecting devices by 2020

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Code Halos in IOT According to a Cisco Internet Business Solutions Group (IBSG) study in 2011, the IoT was ‘born’ sometime between 2008 and 2009. Looking to the future, Cisco IBSG predicts there will be 25 billion devices connected to the Internet by 2015 and 50 billion by 2020. So how big is the economic impact? The Wikibon research ‘Worldwide Industrial Internet Analysis Projection, 2013’, estimates Industrial Internet technology spending at $514 billion and value delivered at $1.3 trillion by 2020. Recent IDC research cites “Explosive growth in cloud and number of Internet-connected devices is expected to propel the Internet of Things market globally to $3.04 trillion in 2020”. Related: IOT-Internet of things basics-part:1 Thus, the potential of Code Halo opportunities led by IoT is gaining unprecedented traction and is expected to drive unparalleled growth across industries. While IoT lays the foundation for Code Halos; the technology industry would undergo a sea ch

Networking in IoT age for big opportunities (1 of 3)

Networking is common in the age of IOT. The basics I want to say are networking means connecting objects together. The networking is possible with wires and without cables. The without cables you can say as wireless. How Computers Connected Computers are connected by using fiber cables. Each computer is connected by cable to a central switch, which connects to the rest of the network   The advantage of wireless networking is no cables required. In a wireless network, most cables and switches are moot. Radio transmitters and receivers take the place of cables. Networking software must be installed. This drives networking functioning. Benefits of network To share resources Sharing information Sharing applications

Internet of Things Basics (Part-7)

The connecting devices and getting raw data from multiples sources, and sending this data to analysis is a major concept in IoT. Devices can be connected through Protocols. What is protocol... I want to share some information on advanced IP based Protocols. Read my previous post on IOT . The role of IPv6- It is advanced in the Range of internet protocols. The main function is it supports Mobility. This is not easily achievable with IPv4 for a number of reasons; however, MIPv6 described in RFC 3775, "Mobility Support in IPv6" (June 2004), among others, facilitates this task. RFC 3775 is known as the "MIPv6 base specification." RFCs are specifications and related materials published by the Internet Engineering Task Force (IETF). IPv6 mobility, specifically MIPv6, relies on IPv6 capabilities. RFC 3775 notes that without specific support for mobility in IPv6, packets destined to an MN would not be able to reach it while the MN is away from its home ne

Top SAP HANA Iot must read Interview Questions(3 of 3)

The below is my third set of interview questions. In this lot I have given ten interview questions for your quick reference. What is SAP HANA? SAP deployed SAP HANA as an integrated solution that combines software and hardware, which is frequently referred to as the SAP HANA appliance. As with SAP NetWeaver Business Warehouse Accelerator (SAP NetWeaver BW Accelerator), SAP partners with several hardware vendors to provide the infrastructure that is needed to run the SAP HANA software. Lenovo partnered with SAP to provide an integrated solution. 2) What is memory for CORE ratio in SAP HANA? For in-memory computing appliances, such as SAP HANA, the amount of main memory is important. In-memory computing brings data that is kept on disk into main memory. This action allows for much faster processing of the data because the CPU cores do not have to wait until the data is loaded from disk to memory, which means each CPU is better used. SQLDBC:An SAP native database SDK that ca