chapter 6  refactoring to third normal form

... decided to represent a relation using a signally linked linear list But we need to address two things for it; first, how to store attributes? and the second, how to store FD’s? We have decided to store ... used to deal with it is defined in [3] This normal form is stricter as compared to Codd’s 3NF and BCNF Every relation can be decomposed into family of relations into 4NF without loss of information ... modeling (normalization) tend to be complex for average designers CODASYS, a tool that helps new database designer to normalize with consultation [23] A web based, client-server, interactive tool...

Ngày tải lên: 23/03/2014, 12:20

... LINQ to Relational Data • LINQ to DataSet – Leveraging the existing investment • LINQ to SQL – Designer-generated mapping – Custom mapping, ORM facilities • LINQ to Entities – VS2008 ... St Bnei Brak 51202 Israel Mapping Data to Objects • LINQ to Objects: – Data = objects LINQ to SQL is an • LINQ to SQL: Object-Relational Mapper – Data = normalized relational database tables – ... 51202 Israel Querying Inheritance • The OfType query operator – The LINQ to SQL query provider translates it to a WHERE on the discriminator column //LINQ: var cars = from car in context.GetTable()...

Ngày tải lên: 12/01/2013, 16:18

... Pointer to projected database of its ancestor node – Bitvector containing information about which transactions in the projected database contain the itemset © Tan,Steinbach, Kumar Introduction to ... Use efficient data structures to store the candidates or transactions – No need to match every candidate against every transaction © Tan,Steinbach, Kumar Introduction to Data Mining 11 Reducing ... greater than or equal to a minsup threshold © Tan,Steinbach, Kumar Introduction to Data Mining Definition: Association Rule Association Rule – An implication expression of the form X → Y, where X...

Ngày tải lên: 15/03/2014, 09:20

... Information at Buyer Sites to Integrate with Corporate Information Systems Current B -to- C Platform Prospective B -to- B Platform Buyer’s information needs to be stored in the buyer’s server to ... Just-in-Time Delivery Current B -to- C Platform Prospective B -to- B Platform Inventory availability is not displayed Dynamic inventory availability should be displayed to customers Precise delivery date ... B2B EC (cont.) Buyer Oriented Directory Current B -to- C Platform Prospective B -to- B Platform Seller Oriented Directory popular To big buyers, Buyer Oriented Directory should be offered Additional...

Ngày tải lên: 31/07/2014, 17:20

... Insider’s Guide to PR: Chapter Objectives • To provide all primary schools in England and Wales with the right information and resources to teach good food hygiene practice • To encourage the ... to be PR Sector: Public Affairs/Government PRCA Consultancy: AS Biss & Co Objectives • To influence policy makers and thereby get legislation amended to ensure all vehicles legally required to ... flow • To keep all shareholders and stakeholders informed and educated about corporate developments • To exploit positive shareholder and opinion leader sentiment towards eVestment’s transformation...

Ngày tải lên: 13/12/2013, 04:15

Ngày tải lên: 14/12/2013, 12:15

... toluene/acetone/water 4/4/1 in the presence of (strong bases had to be avoided due to the sensitivity of the starting compounds) A Pd-complex of 1,1`-bis(diphenylphosphino)ferrocene, proved to ... addition to unsaturated ketones (Scheme 6.35) In the absence of KOH no reaction takes place at all Yields are generally high [73] Carbon-carbon bond formation 6.7.2 233 Nucleophilic additions to 1,3-dienes; ... phosphines (TPPTS and TPPMS), too With palladium catalysts aromatic chlorides are rather unreactive, however, nickel is able to catalyze the reactions of these substrates, too The water-soluble catalyst...

Ngày tải lên: 23/12/2013, 07:19

... surfacebound state to a pore-forming state [28,34] Size of membrane holes made by Bax-a5 and Bax-a6 in LUVs Pores formed by Bcl2 proteins in the mitochondrial membrane must be large enough to allow passage ... fragments corresponding to Bid-a6, which has been shown previously to be able to release calcein from PtdCho LUVs [28], assayed at L ⁄ P molar ratios up to % 5, was unable to induce the release ... value is close to the smallsize condition of an ideal toroidal pore for which negative curvature at the pore rim is expected to be significant, corresponding to a radius close to half of the membrane...

Ngày tải lên: 19/02/2014, 07:20

... measured if it produces a signal with a minimum to signal -to- noise ratio B SIGNAL -TO- NOISE RATIO All electronic instruments are subject to various forms of “noise,” or random, meaningless electrical ... specifications that are unique to the task for which they are designed In many cases, common specification terms such as resolution and sensitivity must be understood in relation to the unique properties ... employed for evaluating particle counter performance are defined and discussed Understanding of these few specification parameters is essential to making informed decisions about particle counters...

Ngày tải lên: 18/06/2014, 19:20

... Gravel stony-faulty Non-cohesive Upper sector = Upper range Lower sector = Lower range – damage due to excavations, – damage due to the growing roots of plants The second group of factors deals ... pumps that will avoid air entrainment Inhibitors Inhibitors: Chemicals added to the water that form a protective film on the pipe surface are called inhibitors This film provides a barrier between ... Inspector Fitters Storekeeper Administrator © 2006 Taylor & Francis Group, London, UK 700 km2 150,000 60,000 1300 km 12,000,000 m3 27 1/1 18 274 Introduction to Urban Water Distribution Topographic...

Ngày tải lên: 18/06/2014, 19:20

... I therefore tookrefuge in other dark passages of the document "What is the meaning of this word Scartaris, and what have thekalends of July to with it?" My uncle took a few minutes to consider ... philosopher did get to the bottom of Sneffels, he has seenthe shadow of Scartaris touch the edge of the crater before thekalends of July; he may even have heard the legendary stories told inhis day about ... enter into the legion of speculation, Ican discuss the matter no longer." "But I have to tell you that the highest names have come to thesupport of my views Do you remember a visit paid to me by...

Ngày tải lên: 01/07/2014, 14:20

... XYZ Company stock rises to $13 per share, you have 10 warrants to use for purchasing that stock at $11 per share I'm an investor who wants to purchase XYZ Company stock, so you offer to sell me ... them to buy stock, you hold on to them and wait until the price of XYZ Company stock climbs to $14 per share You then find another investor who is willing to pay $2 per warrant The advantage to ... investors who have yet to grow their portfolios I l@ve RuBoard I l@ve RuBoard Subscription Rights Subscription rights are formalized promises from a company to sell its stock to its current stockholders...

Ngày tải lên: 01/07/2014, 21:20

... buys the stock on the first day at its price V He then waits until the price of the stock increases by one to V + and sells He then continues to watch the stock until its price falls back to V He ... fair coin is tossed three times It is natural to think of X as the sum of the random variables X1 , X2 , X3 , where Xi is defined to be if the ith toss comes up heads, and if the ith toss comes ... tail We not consider the first two tosses to constitute a run, since the third toss has the same value as the first two Now suppose an experiment consists of tossing a fair coin three times Find...

Ngày tải lên: 04/07/2014, 10:20

... hospital's benefactor But there is more to the story Why did Price kill Doorn? And was anyone else involved? Each step in the problem-solving process leads to other steps The detective has to decide ... `Regression towards mediocrity in hereditary stature' ± a paper that also had implications for the theories of evolution for Galton's cousin, Sir Charles Darwin Galton used regression to refer to certain ... presence of a third factor, Z, influencing the relationship between X and Y X and Y may be related because X and Y respond to a third variable Z In this case, we may well be able to, say, predict...

Ngày tải lên: 06/07/2014, 00:20

... troops as well To it, taxes had to rise from 3–4 percent of GNP to just about the 10 percent that Petty proposed (Holmes, 1993, p 439) Petty saw no objection to allowing France to expand on the ... and carry improvements into every art and science Profound ignorance is totally banished, and men enjoy the privilege of rational creatures, to think as well as to act, to cultivate the pleasures ... factors that he thought relevant) could lead to unemployment It was the duty of the statesman to ensure that the people were employed Steuart had a very ambivalent attitude to luxury and to international...

Ngày tải lên: 06/07/2014, 02:20

... came back to see his master and to assure himself that the clump on the head was not intended as a sign of serious displeasure Hawker took the dog's long ears and tried to tie them into a knot ... not to- day." "Well, I should think you ought to be so much more contented than just ordinary people Now, I " "You!" he cried "you are not 'just ordinary people.'" "Well, but when I try to recall ... wore a brave hang-dog expression The girl surveyed him coldly from his chin to his eyebrows "You have a handsome audacity, too." He lay back in the long grass and contemplated the clouds "You should...

Ngày tải lên: 06/07/2014, 09:20

... gives rise to, another close to it The result is that individuals are closer together than expected by chance How these patterns appear to an observer, however, and their relevance to the life ... effectively and directly from dung pat to dung pat, or from one piece of carrion to another, by attaching themselves to dung or carrion beetles They usually attach to a newly emerging adult, and leave ... advantage to individuals that the selfish herd aggregate with others was suggested by Hamilton (1971) in his paper ‘Geometry for the selfish herd’ He argued that the risk to an individual from a predator...

Ngày tải lên: 06/07/2014, 13:20

... 52-9 Erythema multiforme This eruption is characterized by multiple erythematous plaques with a target or iris morphology It usually represents a hypersensitivity reaction to drugs (e.g., sulfonylamides)...

Ngày tải lên: 06/07/2014, 20:20

... Pregnancy disease, gonadal germ cell tumor Calcitonin Medullary cancer of the thyroid Catecholamines Pheochromocytoma Oncofetal Antigens Alphafetoprotein Hepatocellular carcinoma, gonadal germ Cirrhosis, ... Adenocarcinomas hepatitis Pancreatitis, of the colon, pancreas, hepatitis, lung, breast, ovary inflammatory bowel disease, smoking Enzymes Prostatic acid Prostate cancer phosphatase Prostatitis, prostatic ... hypertrophy Neuron-specific enolase Lactate dehydrogenase Small cell cancer of the lung,neuroblastoma Lymphoma, Ewing's sarcoma Hepatitis, hemolytic many others Tumor-Associated Proteins anemia,...

Ngày tải lên: 07/07/2014, 01:20