identify the possible candidate keys‚ the primary key‚ a probable foreign key‚ and potential secondary keys. a. PARTS (PART_NUMBER‚ STORE_NUMBER‚ PART_DESCRIPTION‚ QTY_ON_HAND‚ COST‚ RETAIL_PRICE) Candidate keys: PART_NUMBER is the only candidate key. No other field will identify parts uniquely. Primary key: PART_NUMBER is the primary key. Foreign key: STORE_NUMBER is a foreign key from the STORE table. Secondary keys: There are no other potential secondary keys. b. CUSTOMER (CUSTOMER-ID‚ CUSTOMER_NAME
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SCH3U0 Writing Chemical Formula FOR DUMMIES Name: _____________ Your task is to create a dichotomous key to help students WRITE FORMULAE for all the different types of compounds that we have learnt this unit. Your audience will be students beginning their grade ten who have minimal knowledge on writing chemical formulas. They are able to: • Read the periodic table and identify metals‚ metalloids‚ and non‐metals • Identify polyatomic‚ but don’t have them memorized • Read the oxidation states (charges) on the periodic table
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Kappelmann Shoop – General Paper Feb. 21‚ 2015 Argue 2 Rewrite Mistakes: Keys to Discovery or Disaster Discovery is a crucial element for the future of society. The actions that lead to new advances‚ however‚ are questionable. Science and new discovery almost always go hand in hand‚ and mistakes are bound to happen when they are paired together. New innovations‚ findings‚ and advancements happen every day‚ and whether or not mistakes are key to that fact is in question. The unearthing of the city of Troy
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Poverty Poverty is a serious problem of the world which has made the life a constant pain for the most of the human beings. Millions of people living on this planet are in such a state of mind that they do not know what to do and where to go to make both ends meet. In simple words the number of people larger than their food requirements is called over population. According to a report of World Bank the person earning less than 1.25 will be below the lowest line of poverty. It is alarming that the46
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Introduction A computerized simulation experiment will be conducted in order to study the cell transport mechanism via the cell’s selectively permeable membrane and passive processes of simple and facilitated diffusion. The plasma membrane is a gateway which allows nutrients to enter the cell and keep undesirable substances out‚ hence‚ making it selectively permeable. One method of transport is called active transport‚ which uses ATP to transport substances through the membrane. The other is
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b.) The mass decreased or increased in each cylinder‚ depending on if the solution was hypotonic‚ hypertonic or isotonic. In Cylinder (A) the mass decreased‚ so liquid was released from the potato‚ because the cells in the potato would have burst if even more was absorbed‚ whereas the length stayed the same. In Cylinder (B) the mass and length increased‚ which means the potato cells absorbed some Sodium Chloride (NaCl)‚ so the cells don’t shrivel up and die. For Cylinder 3 the mass and length also
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Science Lab Report INTRODUCTION |NAME: LORRAINE |LAB PARTNER: KAREN HO | |LAB EXPERIMENT: TESTING OSMOSIS WITH A POTATO |LAB DATE: NOV. 23rd / 2012 | |CLASS: Y-11-C |PERIOD:C | OBJECTIVE The weight of the potato slices will increase‚ decrease‚ or remain
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Desalination of Seawater Project Paper The main concept of this Desalination process is reverse osmosis‚ but we will get into that later. Right now what is probably running through your head is what exactly is desalination. To put it simply desalination is the process to make seawater or otherwise undrinkable water safe to consume. This can be accomplished through a variety of methods such as the simplest but one of the ones that requires a lot of money would be distillation. Distillation is commonly
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Teen Pregnancy is a very serious issue in America. There are many statistics and facts about teen pregnancy and how it is such a big problem in America. So‚ in my paper I want to talk about teen pregnancies and ways to prevent it. I want to explain that teen pregnancy is not the end of the world and that pregnant teens have a future. I want to also talk about my experience and how having a child at a young age changed my life in many different ways. At the age of eighteen I found out I was going
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IIBM Institute of Business Management Examination Paper MANAGEMENT INFORMATION SYSTEMS SECTION A PART 1 ANSWERS 1- B‚ Information. 2- B‚ Relevance. 3- D‚ Development of employees to their full potential. 4- B‚ Inventory control. 5- A‚ Executive Information System. 6- B‚ Who are members of the same company or organization. 7- D‚ Telegram. 8- A‚ Online Transactional Processing. 9- D‚ Common operation. 10- B‚ Activity Control. PART 2 ANSWERS 1. Key features of the Strategic
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