Posts

Showing posts with the label Internet of things

Featured Post

SQL Interview Success: Unlocking the Top 5 Frequently Asked Queries

Image
 Here are the five top commonly asked SQL queries in the interviews. These you can expect in Data Analyst, or, Data Engineer interviews. Top SQL Queries for Interviews 01. Joins The commonly asked question pertains to providing two tables, determining the number of rows that will return on various join types, and the resultant. Table1 -------- id ---- 1 1 2 3 Table2 -------- id ---- 1 3 1 NULL Output ------- Inner join --------------- 5 rows will return The result will be: =============== 1  1 1   1 1   1 1    1 3    3 02. Substring and Concat Here, we need to write an SQL query to make the upper case of the first letter and the small case of the remaining letter. Table1 ------ ename ===== raJu venKat kRIshna Solution: ========== SELECT CONCAT(UPPER(SUBSTRING(name, 1, 1)), LOWER(SUBSTRING(name, 2))) AS capitalized_name FROM Table1; 03. Case statement SQL Query ========= SELECT Code1, Code2,      CASE         WHEN Code1 = 'A' AND Code2 = 'AA' THEN "A" | "A

The Amazing Points on IoT for Absolute Beginners

How things are connected in the IoT world. IT jobs are growing in this area across the world . Earlier, we discussed how the IoT refers to the interconnection of distinguishable smart/intelligent objects or "things" and their virtual manifestation within the Internet or other IP structure. The Basics in IoT The increased capability of processors (8-, 16- or 32-bit microcontrollers), memory (several tens of kilobytes), storage, possible nowadays to connect anything at an affordable cost. IoT Devices The devices always may not be small objects and battery operated. They may be big and are operated with electrical power too. The smart objects connected to a grid, and where the control system connected to a pool of software controllers. The generated data is a huge asset, which then passed to the data analysis engine. IP Scalability The scalability and flexibility of IP are suitable for the diverse range and a potential number of applications, and it is its wel

Internet Of Things Awesome Basics You Need to Read Now: Part-2

Internet of things(IoT) is a booming field, along with human intelligence. Across the world all software companies investing heavily on these platforms to grab opportunities coming ahead. I want to give here various applications we can use IOT: For individual users, IoT brings useful applications like  home automation  security  automated devices monitoring and management of daily tasks. For professionals, automated applications provide useful contextual information all the time to help on their works and decision making.  with sensors and actuators, operations can be rapid, efficient and more economic.  Managers who need to keep an eye on many things can automate tasks connection digital and physical objects together.  Every sector's energy, computing, management, security, transportation are going to be benefitted with this new paradigm.  Vision Development of several technologies made it possible to achieve the vision of the Internet of things. Identific

Internet Of Things Basics (Part-1)

Image
IBM investing $3 billion dollars on internet of things(IOT). What is IOT -It estimates that 90 per cent of all data generated by devices like smartphones, tablets, connected vehicles and appliances is never analysed or acted on. IOT Protocols IoT Basics to Read Now In simple terms, it means machine-to-machine connecting. The emergence of the Internet of Things (IoT) destroys every precedent and preconceived notion of network architecture. To date, networks have been invented by engineers skilled in protocols and routing theory. Related:   Internet+of+things+jobs But the architecture of the Internet of Things will rely much more upon lessons derived from nature than traditional (and ossified, in my opinion) networking schemes. It will consider the reasons why the architecture for the Internet of Things must incorporate a fundamentally different architecture from the traditional Internet, explore the technical and economic foundations of this new architecture, and finall