No Pains No Gains Distributed Database Solutions

NO PAINS NO GAINS: DISTRIBUTED DATABASE SOLUTIONS CSC 633 RAJEEV SAGAR REDDY MERUGU. INTRODUCTION: Database management has undergone more than four decades of evolution producing vast range of research and extensive array of technology solutions. The database research community and software industry has responded to numerous challenges resulting from changes in user requirements and opportunities presented by hardware advances. The relational database approach as represented by SQL databases has been particularly successful and one of the most durable paradigms in computing. Most recent database challenges include internet-scale databases – databases that manage hundreds of millions of users and cloud databases that use novel techniques†¦show more content†¦RDBMS stores the data in the form of tables and can be retrieved from the tables with the help of SQL Language. SQL was invented only after the invention of RDBMS. SQL – Sequential Query Language. Most common RDBMS’s are My SQL, DB2, Oracle, and Microsoft SQL. The reason for using RDBMS rather than a DBMS is that DBMS stores data in the form of Files whereas RDBMS stores data in the form of Tables containing rows and columns and there exists a primary key relationship such that the data stored in multiple tables can be retrieved using SQL. As RDBMS is a relational database model, the data is stored in the tables in the form of relations. RDBMS supports Distributed database and is designed to handle large amounts of data. Database research and associated standardization activities have successfully guided the development of database technology over the last four decades and SQL relational databases remain the dominant database technology today. This effort to innovate relational databases to address the needs of new applications is continuing today. Recent examples of database innovation include the development of streaming SQL technology that is 170 George Feuerlicht used to process rapidly flowing data (â€Å"data in flight†) minimizing latency in Web 2.0 applications, and database appliances that simplify DBMS deployment on cloud computing platforms. It is also evident from the above discussion that the relationalShow MoreRelatedCisco System Case Study1510 Words   |  7 PagesFinance and Order Entry system corrupted the core application database malfunctioning of the system and cisco was shut down for 2 days virtually. This moment has made management to take critical decisions on their IT system. Cisco decided to have a single integrated solution for all the 3 functional areas and with help of KPMG as an integration partner, Cisco has selected Oracle ERP product as their IT solution partner and deployed solution in production by Jan 1995. 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Lisa Harvey-Smith on the Ska Mega-Telescope Free Essays

Lisa Harvey-Smith on the SKA Mega-Telescope – Multiple Choice Questions 1. With current scientific technology, it is concluded that __% of our known matter is Baryonic matter, __% is Dark Matter, while __% is Dark Energy. A. We will write a custom essay sample on Lisa Harvey-Smith on the Ska Mega-Telescope or any similar topic only for you Order Now 33, 27, 40 B. 7, 23, 70 C. 4, 23, 73 D. 9, 25, 66 2. Also called the National Astronomy and Ionosphere Center, the Arecibo Observatory is the world’s largest single-aperture radio telescope. It is located in ______. A. Mexico B. Iceland C. Jamaica D. Puerto Rico 3. The first picture ever made was an oval shaped depiction of the early universe, specifically the cosmic microwave background radiation. The intense blue, green, yellow and red hues depict ______. A. Fluctuations in temperature B. Infrared satellite data C. Sound waves D. Large concentrations of dark energy 4. The world’s first smart radio telescope received radio waves from the ______, then received the same signals bounced off the sea. This was helpful to create fine pinpoint pictures of radio sources outside of our own galaxy. A. Horizon B. Mountains C. Atmosphere D. Glaciers 5. The world’s largest optical telescope is located on a mountain in the Canary Islands. Capable of making exquisitely detailed pictures of the sky, this particular telescope has a massive mirror ofjust over __ meters across. A. 6 B. 8 C. 10 D. 12 6. The Australian telescope compacting ray, composed of 6 radio telescopes took over ____ hours of observing and a 400 image mosaic to create a solid picture of the universe. A. 120 B. 1200 C. 12000 D. 120000 7. Within the early 1900’s, Albert Einstein concluded that space and time actually bends around certain objects with gravitational pull and mass. This can be visualized by the comparison of ______ . A. A puck hitting a net and the net bending to accommodate the force B. The stretch of rubber band and the snapping affect C. The return of a boomerang D. The bending of metal as it is heated 8. The Hubble Telescope is a small telescope, but it is effective for developing clear images because there are no _____ distortions, in comparison to on-earth telescopes. A. Ultra-Violet B. Photon C. Bird and wildlife D. Atmospheric 9. Scientists won the Noble prize for discovering that the Universe is expanding at a rate much faster than previously anticipated. There are several names used to describe this expansion effect, but the most accepted is ______. A. Quintessence B. Vacuum Energy C. Cosmological Constant D. Dark Energy 10. There are several problems with developing new Radio Telescopes, one of these challenges is overcoming interference and finding a location without human activity. However, a place without human activity is also problematic because ___________. A. The location is too far for scientists and astronomers to commute B. There are no large power stations to generate the electricity required to operate telescopes C. With such a great distance from civilization, it will take a long time to transmit information D. Emergency teams will not be able to make it in time in the case of an emergency How to cite Lisa Harvey-Smith on the Ska Mega-Telescope, Essay examples

Jekyll Hyde Essay Example For Students

Jekyll Hyde Essay Nearing the very end of the book, Jekyll proves that Hyde has taken his ability to control his personalities, which has been washed away, thus brings an unhappy end to his life. Half an hour from now, when I shall again and forever reindue that hated personality Jekyll fears that not long after writing his statement, he will once again turn into his monstrous dark side and pace up and down in his last refuge. These words of Jekyll show that he has already locked himself away from the world, and that his last place of safety is where he sits now, not wanting to show his face just in case of transforming unexpectedly, that his obsession and desire has been taken too far. However, when Jekyll eventually changes into Hyde, Poole (Jekylls butler) and Utterson manage to break down the door to Jekylls laboratory, after hearing a voice they cannot identify (Utterson, said the voice, for Gods sake, have mercy) they find Jekyll to be nowhere. Instead, they find Hyde twitching on the floor, various articles, chemicals, a cheval glass and a strange drug. Utterson also finds Jekylls latest will and learns that he has left the house in Uttersons hands. All of the events in this chapter: The Last Night, is somewhat confusing for the first time reader. There are so many things that need to be understood, and only then can it be grasped what has actually happened i. e. Hyde being found on the floor, Jekylls sudden disappearance, and Jekylls will. Poole comes to the conclusion that he must be buried here, while Utterson believes that Jekyll may have fled- both of these possibilities making the truth even more of a mystery to the reader. I believe it is only until the later chapters ( Dr Lanyons Narrative and Henry Jekylls Full Statement of the Case), that the reader will if not fully, then partially understand what as happened, as he/she may or may not have grasped that chapter 8 is just a mirror image of chapter 10. Both of these chapters tell the same part of the story, only just from a different perspective, so it could be said there is duality to be found in the plot, ranging from Pooles and Uttersons understanding (chapter 8) to Jekylls (chapter 10). Stevensons work throughout the novel is tremendously clever and well written, and I believe that he does meet his goal in portraying the duality of human nature. There are so many elements in the story that agree with the idea of a double i. e. both Jekyll and Hydes different appearances, their ways of life and how they are in fact, complete opposites. Stevenson shows this in exquisite detail by expressing himself in such a way that a clear picture is built up in the readers mind, which gradually builds up as more and more of the tale is revealed. There is perhaps one weakness in the novel that becomes present mainly in the second part i. e. from chapter 5 onwards. This is the confusing timeline of the story, as sometimes events dont run chronologically, and has to be read carefully to understand the full message that is being brought across. It could be said however, that this only concerns the first-time reader, and when read a number of times, and only when read a number of times, will the novel will be fully valued to its full degree. It is the sort of book that can be picked up and read many times, as the whole novel has brought with it a classic, timeless feel; an essence within itself. This is the reason why The Strange Case of Dr Jekyll and Mr Hyde will never grow old, and be respected just as much now as what it was nearly 150 years ago.