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Crossover voters are key factor in Atlanta · Philadelphia Inquirer · December 3 3:07 AM  Explore Story »
'Crossover' voters called key to Kasim Reed's apparent win in ... · Los Angeles Times · December 2 4:45 PM
Atlanta mayoral election: Race a key factor · Atlanta Journal And Constitution · December 2 4:38 PM
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Candidate key - Wikipedia, the free encyclopedia
In the relational model of databases, a candidate key of a relation is a minimal superkey for that relation; that is, a set of attributes such that • the relation does not have two distinct tuples w...
en.wikipedia.org/wiki/Candidate_key
What is a Candidate Key? Find out here! ... Definition: A candidate key is a combination of attributes that can be uniquely used to identify a database record without any extraneous data. Each table may have one or more candidate keys. One of these candidate keys is selected as the table primary key.
databases.about.com/cs/specificproducts/g/candidate.htm databases.about.com/cs/specificproducts/g/candidate.htm
Candidate keys: Choosing the right primary key. When an entity or a table has multple candidate keys, how should we choose the right one? ... Three absolute demands on the candidate key, if it is to be regarded as a possible primary key.
www.databasedesign-resource.com/candidate-keys.html www.databasedesign-resource.com/candidate-keys.html
Oracle Developer : what is candidate key? A key that uniquely identifies rows in a table. Any of the identified candidate keys can be used as the table's primary key. Any of the candidate keys that is not part of the primary key is called an alternate key. ... RE: what is candidate key?
www.geekinterview.com/question_details/17222
SQL : what is the difference between a candidate key and a primary key? A candidate key is one which can be used as primary key that is not null and unique constraint both holding true. In short all primary keys are definitely candidate keys. ... RE: what is the difference between a candidate key and...
www.geekinterview.com/question_details/47276
#2.1 Explain the distinctions among the terms primary key, candidate key, and superkey ... A candidate key is a minimal superkey -- a superkey with no redundant attributes. In other words, if any one of the attributes is removed, the set of attributes that remain no longer form a superkey.
www.cs.umd.edu/class/spring2003/cmsc424-0401/HW1answers... www.cs.umd.edu/class/spring2003/cmsc424-0401/HW1answers.htm
In addition, Boehner offered Wittman a rare public assurance earlier this week that he will work to secure the candidate a spot on the House Armed Services Committee.
www.politico.com/blogs/thecrypt/1207/Boehner_not_campai... www.politico.com/blogs/thecrypt/1207/Boehner_not_campaigning_with_homestate_candidate_before_key_special_election.html
Candidate key. Candidate key summary with 4 pages of encyclopedia entries, research information, and more. ... The previous example only illustrates the definition of candidate key and not how these are in practice determined. Since most relations have a large number or even infinitely many instances it would be impossible...
www.bookrags.com/Candidate_key www.bookrags.com/Candidate_key
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