INSTRUCTOR’S MANUAL TO ACCOMPANY Database System Concepts Fourth Edition Abraham Silberschatz Yale University Henry F. Korth Lehigh University S. Sudarshan Indian Institute of Technology‚ Bombay Copyright c 2001 A. Silberschatz‚ H. Korth‚ and S. Sudarshan Contents Preface 1 Chapter 1 Exercises Chapter 2 Exercises Chapter 3 Exercises Chapter 4 Exercises Chapter 5 Exercises Chapter 6 Exercises Introduction 4 Entity Relationship Model 9 Relational
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Taylor Swift’s song "Red" is very joyful even though her words are sometimes gloomy because she misses what she use to have. She is speaking about someone who she can not forget because of all the good memories they have with each other. Taylor Swift ’s use of similes‚ imagery and alliteration in her song "Red" helps portray the good and bad about loving someone that is not around any more. Taylor Swifts uses similes through out her writing to make you feel her happiness and struggles
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A buffer solution can maintains a narrow range of pH even when strong acid are added. In our experiment‚ we can see water is not a buffer‚ water can undergo very big changes when small amounts of strong acid or strong bases are added. When the strong acid‚ 100µl HCl was added into the dd water‚ the pH value changed from 7.38 to 5.83 which mean the dd water has turn into acid. The same phenomenon occurs while strong base‚ 100µl NaOH was added into the dd water. The pH value changed from 7.07 to 9
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PROPERTIES OF SOLUTIONS A solution is a mixture of materials‚ one of which is usually a fluid. A fluid is a material that flows‚ such as a liquid or a gas. The fluid of a solution is usually the solvent. The material other than the solvent is the solute. We say that we dissolve the solute into the solvent. Some solutions are so common to us that we give them a unique name. A solution of water and sugar is called syrup. A solution of sodium chloride (common table salt) in water is called brine
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Solutions for serious and popular crimes Almost everyone in American realizes that we have a crime problem. Being a criminal justice major‚ I will deal with crime my whole career. Cities have the highest crime rate‚ but small towns shouldn’t be overlooked. Crime is like an iceberg‚ with only the tip of it being what is reported. Some criminals that are reported just serve half of their sentence. Punishment for a serious crime in American needs to be swift and sure‚ especially for homicides and drug
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The idea for developing the Integrated Warehouse Solution is to solve the problem of the inventory‚ basically for the Warehouses. Before developing this system we thoroughly did the analysis regarding our competitors and after doing lot of research we find three major competitors. The scale on the basis of which we are competing with our competitors includes the price at which the service is being provided to the customers. Apart from price there are some other major factors that were also kept in
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1.John is twice as old as his friend Peter. Peter is 5 years older than Alice. In 5 years‚ John will be three times as old as Alice. How old is Peter now? 2. John’s father is 5 times older than John and John is twice as old as his sister Alice. In two years time‚ the sum of their ages will be 58. How old is John now? 3. Joan is 3 times as old as her sister. In 3 yeas ‚ shee will be two years more than twice the age her sister will be then. What are their ages? 4. Kevin is 4 years older than
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Solutions for Homelessness This great nation of awesome power and abundant resources is losing the battle against homelessness. The casualties can be seen on the street corners of every city in American holding an "I will work for food" sign. Homeless shelters and rescue missions are at full capacity. There is no room at the inn for the nation’s indigent. Anyone who has studied this issue understands that homelessness is a complex problem. Communities continue to struggle with this socio-economic
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father‚ Jeddy McKenzie‚ Marina McKenzie‚ even the police chief is involved deeply with the illegal aspects of rum-running. In Black Duck‚ Janet Taylor Lisle uses multiple craft moves‚ such as experimental element of newspaper articles‚ symbolism‚ and imagery to demonstrate how the smuggling of liquor affected the Rhode Island town. To begin‚ Janet Taylor Lisle uses newspaper articles as an experimental element in Black Duck to show how rum-running affected Ruben’s town. For example‚ on page 1‚ the
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world today at our global civilization there are many problems that leap to our attention and everyone has a vested interest‚ one such example is food. Science has been tinkering with nature for the past one-hundred years trying to come up with solutions to help fight famine‚ and as a result‚ man made products have created ever more problems. The easiest way in which an individual or individuals can create change is to effect change in their local communities‚ so others can see an image of what the
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