Solved needed a bit of help on the ones I got wrong or wh
It is unique because no two rows in a table may have the same value at any time. It is minimal because every column is necessary in order to attain uniqueness.. This key is indicated by underlining the attribute in the ER model. In the following example, EID is the primary key: Employee(EID, First Name, Last Name, SIN, Address, Phone.
Solved needed a bit of help on the ones I got wrong or wh
The first attribute is the partition key, and the second attribute is the sort key. All data under a partition key is sorted by the sort key value. The following is an example. Why do I need a partition key? DynamoDB stores data as groups of attributes, known as items. Items are similar to rows or records in other database systems.
Solved Create an ER Diagram and Schema for the following entities. Your ER Diagram should
Which of the following statements about attributes are true? (Choose Two) Mark for Review (1) Points They must be single valued unless they belong to more than one entity. They describe, qualify, quantify, classify, or specify an entity.. The logical model's entities, attributes, unique identifiers and relationships map to the physical model.
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2. Relative URL - Links to an image that is hosted within the website. Here, the URL does not include the domain name. If the URL begins without a slash, it will be relative to the current page. Example: src="img_girl.jpg". If the URL begins with a slash, it will be relative to the domain. Example: src="/images/img_girl.jpg".
Solved 8.27. Consider the following EER diagram that desc
the attribute should be unique for all instances of an entity: B). When applying the optional 1-M relationship rule for converting an ERD into a relational table design, which of the following statements is true: A) Each 1-M relationship with 0 for the minimum cardinality on the parent side becomes a new table. B)
Which of the following attribute should be unique ? a) Identity b) Digital identity c) Mashup
Attributes that consist of multiple sub attributes are referred to as: a. Entity b. Composite attributes c. Key attribute d. Recursive relationship Composite Attributes Which of the following can be used to detect fraud occurrences in near real time? a. Legacy systems b. Business intelligence c. Business analytics d.
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Which of the following attribute should be unique? Question Posted on 04 Jan 2021Home >> WEB >> Cloud Computing >> Which of the following attribute should be unique? Which of the following attribute should be unique? Choose the correct option from below list (1)Digital identity (2)Data (3)All of the options (4)Identity Answer:- (1)Digital identity
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If there is a column missing in an entity - normalization should identify this problem? (T/F) True. The transformation from an ER diagram to a physical design involves changing terminology. Primary unique Identifiers in the ER diagram become _________ and relationships become __________ ? Primary keys, foreign keys.
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SQL PRIMARY KEY Constraint. The PRIMARY KEY constraint consists of one column or multiple columns with values that uniquely identify each row in the table. The SQL PRIMARY KEY constraint combines between the UNIQUE and SQL NOT NULL constraints, where the column or set of columns that are participating in the PRIMARY KEY cannot accept a NULL value.
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Study with Quizlet and memorize flashcards containing terms like Which of the following is not true about attribute naming conventions? a. They should be unique within the entity. b. They should not use the entity abbreviation as a prefix. c. They should be descriptive of the characteristic. d. They should not contain spaces or special characters such as @, !, or &., A repeating group is.
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Which of the following attribute should be unique ? a) identity b) digital identity c) mashup d) all of the mentioned. Answer: b. Explanation: A digital identity is those attributes and metadata of an object along with a set of relationships with other objects that makes an object identifiable. 5. Point out the wrong statement :
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MIME 2. Which of the following statements is false? ar A. The value of the ID attribute must be unique within each document. B. The value of the ID attribute may not start with a number. O C. The value of the ID attribute should be lowercase. O D. The value of the ID attribute must not start with a special character best answer for the question. 3.
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Exercises (Set 1) Exercise 7.3.1 7.3. 1. Consider that a Human Resources system must keep track of employees. If we are only including atomic attributes, what attributes would you include for the employee's name. Some possibilities are first name, last name, middle name, fullname. Exercise 7.3.2 7.3. 2.
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See Answer Question: A repeating group is defined as _____. a. a characteristic describing a group of multiple entries of the same or multiple types for a single key attribute occurrence b. a characteristic describing a group of multiple entries of the same or multiple values for a A repeating group is defined as _____.
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a. Attribute. b. Domain c. Tuple d. Relation. 3. Which of the following is not a problem associated with storing data in a file? a occurs when a data item is used multiple times. b to store partial data c of data items d. A large amount of disk space is required. 4. Which of the following is not a property of a data model? a blueprint of any.
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Which of the following attribute should be unique? (a) identity (b) digital identity (c) mashup (d) all of the mentioned. cloud-computing; cloud-architecture; Share It On Facebook Twitter Email. 1 Answer. 0 votes . answered Feb 21, 2022 by Aryanmodi (30.0k points) selected Feb 21, 2022.
