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Author Question: NoSQL really stands for Not only SQL. Indicate whether the statement is true or ... (Read 115 times)

TVarnum

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on: Jul 7, 2018
NoSQL really stands for Not only SQL.
 
  Indicate whether the statement is true or false

Question 2

How is maximum cardinality expressed in IE Crow's Foot E-R diagrams?
 
  What will be an ideal response?


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carolinefletcherr

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Reply #1 on: Jul 7, 2018
Answer to Question 1

TRUE

Answer to Question 2

The Crow's Foot E-R diagram notation uses a hash mark to indicate a maximum cardinality of one and a crow's foot to indicate a maximum cardinality of many. Each symbol is placed immediately next to the rectangle symbolizing an entity. These symbols are combined in various forms to signify 1:1, 1:N and N:M relationships.


TVarnum

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Reply #2 on: Jul 7, 2018
Thank you


carolinefletcherr

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Reply #3 on: Jul 7, 2018
No problemo


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