Database

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What is a Database?

(Report by Kaleb Abdi)

Introduction

Data, to any business, is an asset. How you input, retrieve and use that data can be simply a time consuming expense or make all the difference to the efficiency and cost saving of your business. On this report I consider the fundamental facts of databases and tools used to function the data inside them.

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A database is a collection of processed information related to a particular subject or purpose. Let us consider an enterprise, such as Travel agents, that has a large amount of data kept for long periods of time in a computer. This data might include information about passengers, locations, flights, airlines, and personnel, for example. Typical relationships that might be represented include bookings (Which passengers have seats on which flights?) location (which passengers to which location?), and airlines (which airline to which location?). These types of data stored more or less permanently in a computer is called a database. (Ullman, 18).

You can think of a database as an electronic filling system. The data storage for database is accomplished by the use of one or more files. Traditional databases are organised by fields, records and files. A field is a single piece of information, such as, a person's name or a location of university. A collection of related or similar fields is called a record. An example of a record would contain a person's name, address, date of birth etc. And a file is a compete set of related records. For example, a telephone book is analogous to a file. It contains a list of records, each of which consists of fields name, address and telephone number. (Wiederhold, 177).

Fig.1. A diagram showing file, records and fields.

Database management system (DBMS)

Database management systems are programs that enable you to manage data on your computer. A computerised database management helps a user to store, change, find and present information from the database. An example of a database management system is Microsoft Access.

An Access database has several main components, Forms for data input, tables to store your data, queries to manipulate your data and reports to present the information to you. All can be specifically tailored to have the look feel and functionality you want. Although the term "Database" typically refers to a collection of related data tables, an Access database includes more than just data tables. (The Berkeley _Research, 00).

An access database includes -

· Tables for storing data

· Queries for organising data

· Forms for interaction with data

· Reports for printing results

Tables

After information is gathered through questionnaires, interviews or other methods of gathering information they will be entered in to tables as data (processed information).

Queries

A particular database may contain an awful lot of data in the system, with such systems to find a certain information manually may be found difficult. Queries are used in a database to find the information required from the system. Query is a function, which uses unique identifiers for a data to display the information requested. For example in the government database for job seekers, a query could be used to find a particular person's record by using his/her National Insurance number.

Forms

A database allows a user to add and amend information in the system. For this purpose a database also contains forms to interact with data on the screen. A form can be created using different toolbox's- such as label, textbox, combo box, list boxes and so on.

Reports

The information from a database can be presented in a variety of formats. Most includes a report writer program that enables you to output data in the form of a report. Many also include a graphics component that enables you to output information in the form of graphs and charts.

List of references.

Ullman, Jeffrey D. (14). Principles of database systems. nd Ed. London Pitman.

Wiederhold, G. (177). Database design. nd Ed. New York ; London McGraw-Hill.

The Berkeley _Research (00) Database Management Systems [online]. Berkeley Research. Available from

URL http//db.cs.berkeley.edu/ [Accessed /10/0].

Word count 67

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Sentence completion

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Our staff of freelance writers includes over 120 experts proficient in sentence completion, therefore you can rest assured that your assignment will be handled by only top rated specialists. Order your sentence completion paper at affordable prices with cheap essay writing service! Explanation

The first part of the sentence is a statement the more severe an inherited disease is, the more

likely it is that the genes causing it will be eliminated by natural selection. The word

consequently suggests that the missing words must, together, make a statement in keeping with

Help with essay on sentence completion

this assumption. A is the correct answer. A disease that is lethal is very severe. Because,

according to the statement, the most severe diseases are likely to be most strongly acted against

and are therefore least likely to recur, one would expect lethal diseases to be very rare. B is

incorrect. It is possible that diseases that are untreated would be dangerous, but the first part of

the sentence suggests that the expectation concerns the elimination of hereditary diseases, not their

dangerousness. C is also incorrect. There is no information in the sentence that suggests that the

more unusual a disease is, the more unusual a disease is, the more refractory (resistant to

treatment) it will be. D is not the correct answer. It is not unlikely that new hereditary diseases

would be perplexing, but the first part of the sentence suggests that the expectation concerns the

elimination of hereditary diseases, not whether they are perplexing. E, the last choice, is not the

correct answer. The idea that widespread diseases are acute does not follow from the

statement give. Rather, the opposite would be expected, given the assumption.

Answer (A)

. Although ancient tools were----preserved, enough have survived to allow us to demonstrate an

occasionally interrupted but generally----progress through prehistory.

(A) partially.. noticeable

(B) superficially.. necessary

(C) unwittingly.. documented

(D) rarely.. continual

(E) needlessly.. incessant

Explanation

The first missing word describes how ancient tools were preserved. The phrase enough have

survived indicates that not all survived, and the word Although indicates that the tools were

preserved in a way that would not lead you to expect enough to survive. The second missing word

describes a progress through prehistory. The word but suggests that the word that fills the

second blank must contrast with the idea of occasional interruption.

D is the correct answer. It is logical to say that enough tools have survived in spite of their being

rarely preserved. A continual progress contrasts with one that is occasionally interrupted.

Answer (D)

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The Theme of Dreams in A Raisin in the Sun

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In A Raisin in the Sun most of the main characters have a dream that they each try to work towards. Walter's dream was to open a liquor store with the insurance money that his mother got from her husband's death. Beneatha's dream was to become a doctor, and she was secretly hoping for some of the money to help pay her way through. Mamma wanted to use this money to buy a house for the family. Each of these dreams revolved around the insurance check that was a total of ten thousand dollars. However, out of these three different dreams, only one became a reality.

Beneatha was the "intellectual" of the family. She considered herself to be above the rest of her family and was always seeking her heritage "Well, do me a favor and don't ask him a whole lot of ignorant questions about Africans. I mean, do they wear clothes and all that" (57). Beneatha was a major nonconformist and always preached against assimilation. However, she became so concerned to being a nonconformist that she conformed her life around being against anything that was not of Africa or her heritage "Enough of this assimilationist junk!" (76). Beneatha's dream was to become a doctor and then return back to Africa and practice her medicine there. Beneatha was being hopeful towards the fact that Mamma would give her some of the check to help pay for her medical school. Unfortunately, this aid was lost to Walter in his attempt at his dream of being rich. While it is not known for sure if Beneatha becomes a doctor, the reader or audience is aware that it will be difficult.

Walter was the most aggressive character in the play. All he could think about was getting that money so that he could fulfill his dream of becoming a rich black man. Walter's scheme was to go in with two other guys to start a liquor store so that he could begin to make a decent living. Walter began to stress out over this dream and was always yelling at his wife and badgering his mom for the money. He felt that no one understood him, and, while this was true, his dream turned into a sham "You just don't understand, Mamma, and you just don't understand" (74). Willy took Walter's and Bobo's money and ran off with it. This crushed Walter's dream and severely hampered Beneatha's dream.

Cheap Custom Essays on The Theme of Dreams in A Raisin in the Sun Mamma's dream was the only one that ever became a reality in the span of the story. Mamma had always wanted a house of her own and a small garden so that she could plant things such as flowers and maybe some vegetables "Well, I always wanted me a garden like I used to see sometimes at the back of the houses down home" (5). When the check arrived she went out and bought a home for the family so they could move out of the "rat-trap" that they were in. This infuriated Walter who was hoping for the check so that he could enter into his "business" proposition with Willy and Bobo. However, Mr. Linder came to their apartment and tried to persuade them to sell their newly acquired home. Walter refused his offer, not once, but twice. Mr. Linder was the community chairman and what the community of Clyborne Park felt was that they do not want Negroes living in their neighborhood. At the end of the play the family was heading towards their new home. How this venture turned out is left up in the air. Trouble is hinted at when Linder says "I sure hope you people know what you're getting into" (14).

This story can be considered a cliffhanger because one dream is shattered, and the other two have a very good chance of failure. Walter was crushed at being taken by Willy. Beneatha has zero financial backing for medical school. Mamma's dream of a home is still under the possibility of being destroyed under the wrath of their hateful neighbors. The reader or audience can only hope for the best for this unfortunate family of big dreams.

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The Salem Witch Trials

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Our staff of freelance writers includes over 120 experts proficient in The Salem Witch Trials, therefore you can rest assured that your assignment will be handled by only top rated specialists. Order your The Salem Witch Trials paper at affordable prices with cheap essay writing service! Why the hell is everyone still so obsessed with the Salem witch trials? Give it a rest already. They began in the late 18th century, and now we are in the 1st, if I am not mistaken. These people keep on bitching about how restrictive Puritan society was and how they persecuted everyone left and right.

Actually, their strict moral codes are highly exaggerated. You cant really blame them. I mean, here they are on a new continent, trying to survive. They tried to be strict to create some sort of social order, and there was no room for anyones bullshit at the time.

So then these two idiot girls decided to make up a bunch of stories about witches and stuff. Everyone believed them and decided to put a bunch of women that no one liked on trial. And thats how the whole Salem thing begins. I bet those two girls werent even expecting the whole village to believe their bullshit, but I guess they were dumb enough to go along with it. Well, someone always has to pay the price of stupidity.

I keep hearing this bitching about how hundreds of innocent women were persecuted and this and that. Ok, so they spent some time in jail. But only 0 were actually killed, ok? 0. Not hundreds. 0. And dont bother arguing over this because we both know that youre not a source as legitimate as my American History textbook.

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So quit whining about these unfair persecutions already. Its getting old. Shit like this happens in history all the time, there was nothing special about the Salem case. It doesnt need scores of books, it doesnt deserve all the fucking 5th grade research projects done on it. We need to stop believing the lie that just because a lot of people were persecuted, they all died. I wish people would actually know what they are talking about before launching into their whole bitch-fest campaign.

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Biography

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Our staff of freelance writers includes over 120 experts proficient in Biography, therefore you can rest assured that your assignment will be handled by only top rated specialists. Order your Biography paper at affordable prices! My name is .......... I was born in Baltimore, Maryland; I am 6 years old. The eldest of three children , I have younger brothers. My parents divorced when I was 10 and we lived primarily with my mom seeing dad on weekends. I enjoy a close relationship with my brothers and both of my parents who over the years have remained friends. I attended Western Senior High School in Baltimore; it is the oldest all girls high school in the United States. There is where I began my journey towards adulthood and towards the life I have always wanted and continue to work towards today. I am happily married to my high school sweetheart; we have beautiful children. We reside in Glen Burnie, Maryland.

I work as a Special Clerk in Network Asset Management's group. We are responsible for providing investment and inventory support to the central office and outside plant engineers, including payment of invoices, tracking of inventory and investments, account maintenance and annual inventory and accounting audits as well as many other task. I am computer literate and have working knowledge of most computer programs. My career goal is to own my own business.

I am a straightforward woman who speaks her mind. Growing daily, I am finally beginning to really know what I want out of life. I am laid back and like to have fun. I enjoy reading roller skating bowling, going to movies, dancing, interior design, pampering and being pampered and am an avid history buff. I believe that all things all possible when you have faith and belief in a higher power. Family and friends are a very important part of my life, they enrich me offering love and a strong support system that I feel blessed to have. A long time ago, I heard a saying that stuck with me today it's the motto for my life, Love like you have never been hurt, Work like you don't need the money and Dance like no one is watching.

I am a work in progress, with many strengths and some weaknesses, the one weakness that I am constantly trying to improve upon is better time management. I enjoy helping others and will also need help.

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One day I would like to travel around the world. Having traveled up and down the East Coast of the United States I would like to go to California and Vegas. I hope that my travels will take me to Africa, Jamaica, France, England, Australia and Hawaii.

I know that I will achieve all of my goals and do all that I want to do in this life because I have faith and determination. I am ready for the challenge are you?

This is the makings of a Successful Extraordinary Woman.

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Marriage today

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Marriage Today

Marriage is less valued today than ever before.

Marriage and the way we view it today, differs greatly from the past. We no longer have to be married to be a family. Our views and opinions on marriage and its meaning have changed considerably. Marriage isn't necessarily less valued, it's just viewed differently.

The fact that the divorce rate has doubled in the last twenty years could lead us to believe that marriage isn't important to us anymore. Instead of persevering and working at married life, people are more frequently choosing to end their relationships. However, these divorced couples seem to be merely opting out of poor quality relationships to look for something better. In the past divorce was frowned upon, we were expected to carry on regardless of whether we were happy or not. Until 14, there was no financial help available for divorce cases. Making the process easier and cheaper has given people the opportunity to leave ‘empty shell' marriages behind. For example in 11, 75% of women and 80% of men divorced before the age of 5 were remarried within 10 years. These figures show that we haven't dismissed the idea of marriage. Repeated remarriage doesn't mean we take marriage lightly, just that society has changed and we're not expected to put up with being unhappy. People are demanding a better quality of marriage, it might take two or three attempts to get it right.

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With the majority of one-parent families being created through divorce, we can't use lone parents as an example of marriage being less valued. Lone parent families are often only temporarily in this situation and like divorcees go on to remarry.

On the surface, the significant decline in marriage can appear to suggest its unimportance. This can simply reflect an increase in cohabitation. Attitudes have changed, it's quite acceptable to have a sexual relationship and children outside wedlock. Living with a partner can be as strong and binding as marriage. Many people choose to cohabit and have a family. They're married in every sense of the word, only without the certificate. If anything it reinforces the idea that marriage is very important. Ensuring we have chosen the right person to be our partner before committing ourselves. Many cohabiting couples go on to get married later. Again, we have more choices nowadays, we're not expected to rush into things we're not sure of. The cost of a wedding ceremony must also be taken into consideration. For the average family, finding thousands of pounds for something they're living quite happily without isn't always easy.

Less than half of today's weddings are a traditional religious ceremony. A civil ceremony is a popular option. This sort of wedding can be held anywhere and involve almost anything. Some will view this as trivialising marriage, rewriting vows and choosing bizarre locations for the ceremony. However the couples involved must be taking things pretty seriously to go to such lengths. After all, it's their day and they're personalising things because it is so special to them. With church membership and attendance down we see an increasing number of couples doing things their own way. This is down to attitudes and beliefs changing and with it the idea of what marriage is about.

Conventional roles within the family are changing. Some women no longer want to be a mother and housewife first. Their expectations of marriage are different from the past. Careers for both sexes can be priority to create a stable environment for relationships and children later on. This confirms the value of marriage. The average age at marriage has increased.

The difference between the past and the present is the choices we have. If we're unhappily married we have the option to change things. If we choose to cohabit there's no strain on us to marry if we're not ready. When we do marry we can say how and where. Modern life demands a certain quality in relationships. We want to get more out of a relationship outside the home. We want to be friends with our partner and spend free time together. Marriage isn't less valued today, the way we live our lives has changed and so have our reasons for choosing married life.

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Crucible-John Proctor

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Our staff of freelance writers includes over 120 experts proficient in Crucible-John Proctor, therefore you can rest assured that your assignment will be handled by only top rated specialists. Order your Crucible-John Proctor paper at affordable prices with cheap essay writing service! The The Historic happenings of the Salem Witch Trials are told in the story of the Crucible. In the Crucible, the main character is John Proctor. John Proctor is a tragic hero who is a great man but has one single flaw, pride, which will lead to his destruction.

John Proctor is considered the to be a great man in Salem. He owns a good piece of land and farms it very well. He is a devoted husband and loving father of three. There are groups and factions that are present in Salem where John has stayed clear from them. This shows that he does not get involved with all the problems of the town. He also despises hypocrites although he becomes one at the end of his life.

In the previous winter, Elizabeth Proctor had gotten very ill. John Proctor had committed lechery with Abigail Williams during this time. Abigail told John that there was no witchcraft going on. When the trial had started, Elizabeth was begging John to go to the court and explain to the court what Abigail had told him. John didn't because he didn't want his relationship with Abigail to become public. When John tried to tell the court about what had happened, it was too late. Than John Proctor was accused of witchcraft. By the end of the trial, Judge Danforth was willing to pardon John Proctor. When all he had to do was sign a piece of paper, his pride took the better of his judgment. He knew that if he signed that paper and gave it to the court, his name and reputation would have been scarred forever. He was worried about his children. Yet, he should have saved his life instead of dying for his pride.

When John Proctor did not submit his written signature of confession, he was sent to hang. If he had given his confession, he would have been able to live. Judge Danforth did not want John Proctor to die because he had thought that he was not a witch. He understood that Abigail was lying. The reason he could not come out with it was because his reputation would have been ruined. All that he had to do was give that confession to Danforth and he would have been given the gift of life.

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John Proctor is portrayed in the story of the Crucible where he is the victim of the Salem witch trials. The destruction and end of John Proctor's life is the result of his pride getting to the better of him. Because he was such a great man and had that single flaw, pride, he is considered to be a tragic hero.

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