Composite entity Study guides, Class notes & Summaries
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INF3703 Assignment 2 (COMPLETE ANSWERS) 2024 - DUE 28 June 2024
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INF3703 Assignment 2 (COMPLETE ANSWERS) 2024 - DUE 28 June 2024 ;100 % TRUSTED workings, explanations and solutions. For assistance call or W.h.a.t.s.a.p.p us on ...(.+.2.5.4.7.7.9.5.4.0.1.3.2)........... 
 
Question 1 [30] 
As stated in the case, Skyworth follows the Systems Development Life Cycle (SDLC) (see page 529 
of Coronel et al., 2020) to design information systems for their clients. In the planning phase, the 
database design and development team conducted a feasibility study to add...
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WGU C175 / D426 DATA MANAGEMENT FOUNDATIONS OA EXAM Questions With Verified Answers (100% Correct) Graded A+
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WGU C175 / D426 DATA MANAGEMENT FOUNDATIONS OA EXAM Questions With Verified Answers (100% Correct) Graded A+. Define: Referential Integrity - ANSWER- Requires that ALL foreign key values 
must either be fully NULL or match some primary key value 
4 Ways Referential Integrity can be violated: - ANSWER- 1. Primary key is 
updated 
2. Foreign key is updated 
3. Row containing primary key is DELETED 
4. Row containing foreign key is INSERTED 
4 Actions to Correct Referential Integrity Violation: - A...
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WGU C170 Exam (Latest 2024/ 2025 Update) Data Management Applications Exam| 100% Correct| Grade A
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WGU C170 Exam (Latest 2024/ 2025 Update) Data Management Applications Exam| 100% Correct| Grade A 
 
Q: What are homonyms and synonyms, and why should they be avoided in database design? 
 
Answer: 
 Homonyms appear when more than one attribute has the same name. Synonyms exist when the same attribute has more than one name. Avoid both to avoid inconsistencies. 
 
 
Q: How would you implement a 1:M relationship in a database composed of two tables? 
 
Answer: 
 A car is owned just by one custome...
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WGU C170 DATA MANAGEMENT – APPLICATIONS EXAM 2024 WITH 100% CORRECT ANSWERS
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WGU C170 DATA MANAGEMENT – APPLICATIONS EXAM 2024 WITH 100% CORRECT ANSWERS 
 
In data modeling, the construct used to organize and describe an attribute's set of possible values - correct answer domain 
 
An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. - correct answer superkey 
 
A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey - correct answer candidate key 
 
The pr...
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WGU C170 Data Management - Applications|Latest Update Complete with A+ Graded Answers
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WGU C170 Data Management - Applications|Latest Update Complete with A+ Graded Answers 
 
Domain 
In data modeling, the construct used to organize and describe an attribute's set of possible values. 
 
 
Primary key (PK) 
An identifier composed of one or more attributes that uniquely identifies a row. Also, a candidate key selected as a unique entity identifier. A minimal superkey. 
 
 
 
Key 
One or more attributes that determine other attributes. 
 
 
Determination 
The role of a key. In the c...
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C170 Data Management Application Questions with solutions 2023
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C170 Data Management Application Questions with solutions 2023 
AREA 
In DB2, a named section of permanent storage space that is reserved to store the database. 
 
 
 
associative entity 
See composite entity. 
 
 
 
 
Brainpower 
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bridge entity 
See composite entity. 
 
 
 
candidate key 
A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a ...
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WGU C170 - Data Management : Cards Questions & Correct Answers | Grade A+
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AREA 
Ans- In DB2, a named section of permanent storage space that is reserved to 
store the database. 
candidate key 
Ans- A minimal superkey; that is, a key that does not contain a subset of 
attributes that is itself a superkey. 
closure 
Ans- A property of relational operators that permits the use of relational algebra 
operators on existing tables (relations) to produce new relations. 
composite entity 
Ans- An entity designed to transform an M:N relationship into two 1:M 
relationships...
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WGU C170 Study Guide (Latest 2024/ 2025 Update) Data Management Applications Exam| 100% Correct| Grade A
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WGU C170 Study Guide (Latest 2024/ 2025 Update) Data Management Applications Exam| 100% Correct| Grade A 
 
Q: domain: 
In data modeling, the construct used to organize and describe an attribute's set of possible values. 
 
 
 
Q: entity integrity 
 
 
Answer: 
The property of a relational table that guarantees each entity has a unique value in a primary key and that the key has no null values. 
 
 
 
Q: equijoin 
 
 
Answer: 
A join operator that links tables based on an equality condition tha...
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WGU C170 Chapter 1 Prep Exam Questions With All Correct Answers.
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AREA - Answer In DB2, a named section of permanent storage space that is reserved to store the database. 
 
associative entity - Answer See composite entity. 
 
bridge entity - Answer See composite entity. 
 
candidate key - Answer A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey. See key. 
 
closure - Answer A property of relational operators that permits the use of relational algebra operators on existing tables (relations...
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WGU C170 Data Management Application. Exam Review. Graded A+ 2024 | 33 Pages
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AREA - -In DB2, a named section of permanent storage space that is reserved to store the database. 
associative entity - -See composite entity. 
bridge entity - -See composite entity. 
candidate key - -A minimal superkey; that is, a key that does not contain a subset of attributes that is 
itself a superkey. See key. 
closure - -A property of relational operators that permits the use of relational algebra operators on 
existing tables (relations) to produce new relations. 
composite entity - -An...
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