Database Technology Essay Example for Free

Database Technology Essay Objectives of the course: †¢ This course aims to provide continuum to where the first course of databases left off. Design aspects of relational databases are covered. †¢ Complex data models like OO OR parallel and distributed are introduced. †¢ The course provides students a good overview of the ideas and the techniques, which are behind recent developments in the fields of data warehousing and Online Analytical Processing (OLAP). 1. Overview Review of relational database systems, ER diagram, SQL. 2. Integrity and Security Domain constraints; referential integrity, assertions; triggers; triggers and Assertions in SQL. Security and Authorization; Authorization in SQL. 3. Relational Database Design First Normal form; pitfalls in relational database design, functional dependencies; decomposition. Desirable properties of decomposition. Boyce – Code normal form; 3rd and 4th normal form. Mention of other normal forms. 4. The ER Model Revisited Motivation for complex data types, User Defined Abstract Data Types And Structured Types, Subclasses, Super classes, Inheritance, Specialization and Generalization, Relationship Types of Degree Higher Than Two. 5. Object-Oriented Object relational databases Object Identity, Object Structure, and Type Constructors, Encapsulation of Operations, Methods, and Persistence, Type Hierarchies and Inheritance, Type extents and Queries, Database Design For An ORDBMS Nested Relations and Collections; Storage And Access methods, Overview of SQL3. 6. Parallel and Distributed Databases Parallel Query Evaluation; Parallelizing Individual Operations, Sorting, Joins; Distributed Database Concepts, Data Fragmentation, Replication, and Allocation techniques for Distributed Database Design; Query Processing in Distributed Databases; Concurrency Contr ol and Recovery in Distributed Databases. 7. Enhanced Data Models for Advanced Applications. (Overview and Design issues) Temporal Databases; Spatial Databases Geographic Information Systems, Mobile Databases. 8. Data Warehousing and OLAP. a) Data Warehouse Basics: Data Warehouse (DW) Introduction Overview; Data Marts, DW components; Data warehouse architecture; ETL Data Transformation – Extracting, Conditioning, cleansing, Scrubbing, Merging, etc., b) OLAP: Multi-dimensional modeling Fact table, dimensions, measures, examples; Schema Design – Star and Snowflake; OLAP OLAP Vs OLTP, ROLAP, MOLAP, HOLAP; tools. OLAP Operations – Rollup, Drill-down, Dice slice, pivot. Text Books: 1. Elmasri and Navathe, â€Å"Fundamentals of Database Systems†, Pearson Education 2. Raghu Ramakrishnan, Johannes Gerhke, â€Å"Database Management Systems† McGraw Hill 3. Kimball, Ralph; Reeves, Laura et al Data warehouse Lifecycle Toolkit: expert methods for designing, developing, and deploying data warehouses Wiley publications. References: 1. Korth, Silberchatz, Sudarshan, â€Å"Database System Concepts† McGraw Hill 2. C.J.Date, Longman, â€Å"Introduction to Database Systems†, Pearson Education 3. Paulraj Ponnian, â€Å"Data Warehousing Fundamentals†, John Wiley. Term Work Term work shall consist of at least 10 assignments/programming assignments and one written test. Marks 1. Attendance (Theory and Practical) 05 Marks 2. Laboratory work (Experiments and Journal) 10 Marks 3. Test (at least one) 10 Marks The final certification and acceptance of TW ensures the satisfactory performance of laboratory Work and Minimum Passing in the term work. Suggested Experiment List 1. At least one or two review SQL assignments covering triggers, assertions and authorizations. 2. Object Oriented Queries 3. Case study assignments for OO and OR database. 4. Two mini projects in distributed and parallel databases. 5. Hands on any one good warehousing tool (Oracle/SQL server Analysis tool etc.) 6. A full fledged mini project in which a student will design and implement a data warehouse. The data warehouse must be populated and OLAP queries and operations to be demonstrated for the warehouse.

Discovering Books :: essays research papers

Richard Selzer / Discuss how reading books changes my life Richard Wright, in his essay â€Å"Discovering Books,† explains how reading books changed his outlook on life and eventually his life itself. The first book that widened his horizons was an overtly controversial book by H. L. Mencken. I have a story not so dissimilar from his. Coming out of High School, I had in my possession the perspective that I knew everything. So I started, straight off the bat, working in a variety of menial jobs, which would have lead me to a dead end, for as the good jobs in today’s society required college degrees. So, after working for two years with a white-collar full of frustration, I decided it was time to take matters into my own ink-stained, carpal tunnel syndrome-stricken hands. I immediately gave my two-weeks notice, and pontificated about going to college. Headed along the yellow brick road towards the registration office, I was intercepted by my malevolent manager, the â€Å"Ineffable John† as he was called by my fellow co-workers, and he said unto me, â€Å"Michael, you don’t want to go to college, stay here and you shall have bestowed upon your unworthy head all which you need to know. Here, fill up my coffee cup.† With his words still echoing in my mind, I wanted to sprint down the hallway, pole-vault over the cubicle prisons, hurdle the water ration cooler, and dive through the double-paned sliding glass doors. This spectacular display of athletic ability would have been terrific, but the ball and chain still shackled to my ankles would have slightly hindered my escape. One week after my pre-resignation notice and John’s wise words of discouragement, my manager’s secretary, Mary, who just had a baby earlier that day but wouldn’t take unpaid sick leave, approached me and said, â€Å"Don’t listen to John, college is a sure ticket to get out of this galley, otherwise you’ll end up having a baby and coming to work on the same day because this company doesn’t provide maternity leave.† A week later I was walking out the double-paned sliding glass doors and into college life. In the counselor’s office, my counselor advised me towards taking a psychology class, seeing as it is a requirement for an AA degree, and because I did not know what sort of degree I wanted at the point. So, I agreed to take the class. Bob Rice was the eccentric instructor of this introduction to the wonderful religion of psychology.

An Idea That Failed

Kamala who worked in â€Å"ICC bank† used to reach her workplace In her car. One day,she was unable to start her car and as she has to report In office 9 o'clock sharp but she did not have time to get the car repaired-So she decided to take a bus. When the bus arrived,it was overcrowded but if she waited for another one,she would have not made it in time. So she boarded it and somehow managed to reach office in time. On reaching the bank,she remembered carrying her cell phone with her. When she checked her Jeans pocket†¦ She was shocked on not finding it there.Her pocket was empty. Maybe It was stolen. â€Å"l should not have boarded a crowded bus. Maybe somebody has picked my pocket there†,she said to herself-Manager Gathers too had just reached the bank-seeing Comma's face she understood that there was some problem. â€Å"What is the matter,Kamala? Why are you looking upset? L's everything all asked. â€Å"Marry,my cell phone has been stolen†,spoke Kamala nervously. â€Å"You did not have any cell phone! â€Å"surprised Gathers said. â€Å"Yesterday was my birthday and It was a birthday gift to me from my husband. He had bought It yesterday†,salad Kamala.Olathe is saddled us go to the Police Station and get a report lodged†,Gathers said. Disappointed Kamala will it matter? I won't get the cell phone back† â€Å"We must get a complaint lodged for every crime. The thief will soon be caught you see and you will get your cell phone back†,the manager assured. 000 so both went to the Police station. Landscape venue who was on duty writing the report inquired,†What was your phone number? â€Å". Then Venue dialed the number from his phone. â€Å"l am sure. You will not get through. The thief either must have taken out the Simi card or must have switched off the phone†,a disillusioned Kamala said.The cleverest of the thief's also commits a mistake somewhere. Maybe your cell phone thief leaves a clue too†,Landscape said. On not getting the number for the first time,the inspector tried again. â€Å"it is said softly and switched on his speaker phone. A voice responded,†Hello,who is speaking? † â€Å"There is a good news for you. Our company rewards a cell phone buyer every month with two tickets to Ago†¦ The winner's name is taken out through lottery. You are the lucky one who has purchased a cell phone yesterday and won the prize. Elf you do not want to avail of the trip,we will offer you a cash of prize RSI. ,OOH,† Venue said. Gathers and Kamala understood that Venue played a trick to trap the thief in the net. And he was successful too. The thief responded,†Ã¢â‚¬Ëœ will avail of the cash prize. When and where will I get the prize. † â€Å"You can come to our office if you want. Or we could send our officer to hand you over the prize. You will Just have to come and show your cell phone to us†, said the inspector. â€Å"l will come to your the thief â€Å"Anytime. Our address is 8-404,Maharani Bag and my name is Venue An excited thief said,†Ã¢â‚¬Ëœ will be there in two hours†.Keeping the phone down the inspector said,† The thief seems very greedy. He did not even think where we got his number from. ‘ was apprehending that if he enquired that I would not know what to say. † A surprised Kamala asked,†whose address was the one you gave? † â€Å"The same company's from where you bought your cell phone. Krishna is my friend and he is General Manager of that company†,informed Venue. â€Å"You managed to ensure the thief very Gathers. â€Å"You may leave now. Len an hours time you will get your cell phone and the thief too will be caught,† Venue assured. L forgot to tell you that my cell phone has a small Barbie sticker on its inside by my aught†,informed Kamala â€Å"This will make it easier to identify your cell Venue. One hour later inspector re ached his friend Krishna office and told him about everything. Curtain. SAA has no idea. Speaking arrogantly to Krishna,Parade said â€Å"Did you rang me up? I have come to collect my prize of RSI. 50,OOH† â€Å"Where is your cell phone? â€Å"asked Krishna. Parade showed the cell phone. Krishna opened the cell phone and saw Barbie sticker inside it. He said,†Come out,inspector. The person you were waiting for is here† When Parade saw Venue he was shocked.He could not even dream that he would be aught like this one day. â€Å"How many cell phones have you stolen till now? â€Å"Landscape asked sternly. â€Å"Five hundred†,parade,petrified could not lie. Venue arrested Parade immediately and put him behind bars. Kamala was too happy getting back her cell phone. She praised Venue for his efficiency. â€Å"More than my efficiency it was the foolishness of parade that helped. Elf he had not talked on the cell phone,my plan would not have worked. Parade is very clever but committed a mistake this time†,Venue said. Parade was punished with one year imprisonment. Many of his friends too were put behind bars.They were very happy to see him but when they learnt about his foolishness,they all had a hearty laugh. His best friend Panda said,†Parade,you are so clever. Everyone calls you clever,Parade. How could you commit such a mistake? You should not have talked with that cell phone. You should have at least enquired. After all,the buyer was to get a prize, not you. You had stolen it. You must have thought that you would get RSI. 50,OOH easily. You have not only made a fool of yourself but also let us down too† Parade could not speak a word and sat with a hung face. His accomplices too refused to accept him as his leader. THE END

Arab Culture in Health Care - 1462 Words

Successful Patient-Doctor Relationships with the Arab Culture Many people have seen the increase of immigrants coming to the United States. â€Å"Census 2000 measured a U.S. population of 281.4 million, including 1.2 million who reported and Arab ancestry† (de la Cruz and Brittingham, 2000). Arab Americans are those people who speak or are descendents of Arabic-speaking populations. As doctors and caregivers continue to provide care to those that speak English, communication between them is easy. But when this simple task is changed when there is a patient from a different culture, it produces challenges that both parties have to overcome. Doctors and caregivers have to increase their cultural awareness and sensitivity so that there is a good†¦show more content†¦136). The germ theory can be defined as â€Å"microorganisms, which are too small to be seen without the aid of a microscope, can invade the body and cause certain diseases† (Kusinitz). Salimbene (2000 pg. 136) found that: The humoral theory of disease is the basis for the Arabs. Many aspects of life are divided into four: the year is divided into four seasons; matter into fire, air, earth, water; the body into black bile, blood, phlegm, and yellow bile; and the environment into â€Å"hot,† â€Å"cold,† â€Å"moist,† and â€Å"dry.† These illnesses are treated with the opposite humor. Illnesses are attributed to the extreme shifts from hot to cold and vice versa. It is also thought that the digestive system is given an opportunity to adjust to a â€Å"hot† and â€Å"cold† food before fully digesting it (Salimbene et al., 2000 pg. 137). The cultural health beliefs are specific for the Arabs with the main concern of the family. The family’s role is to indulge the sick person and take responsibilities off his or her shoulders (Salimbene et al., 2000 pg. 135). According to Meleis (2005 pg. 52), the family is central in both society and culture. When a woman is pregnant, the woman must be satisfied because â€Å"it is believed that the unborn child may develop a birthmark in the shape of the unsatisfied craving† (Salimbene et al., 2000). In the Arab culture, pain is harmful and should be controlled because the family does not want to see the patientShow MoreRelatedSpirituality of Arab Heritage: Review of Related Literature1806 Words   |  7 Pagesï » ¿Spirituality of Arab Heritage Review of Related Literature Understanding of spirituality of Arab heritage in the context of healthcare provision and nursing can be best understood from a trans-cultural perspective, wherein healthcare providers are not only knowledgeable about specific cultures that they would most likely interact with on a regular basis, but they must be also culturally competent to interact and provide care to people who could belong to these diverse cultural groups. Indeed,Read MoreNursing Care for the Arab Culture Essay1228 Words   |  5 Pagesdiversity. 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