Composite entity - Study guides, Class notes & Summaries

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...

WGU C175 Data Management Foundations Final Exam Questions and Answers 2024/2025 Graded A+ . Which of the following is true of business rules? entity A(n) _______ is anything about which data are to be collected and stored. XML/Hybrid data model Oracle 11g is an example of the _______. entity instance Each row in the relational table is known as a(n) relational data model MySQL is an example of the _______. attribute A(n) _______ is the equivalent of a field in a file system. entity re...

MISY 5300 Final Review Latest Update Graded A+ Steps in conceptual level design Defining the necessary attributes for each entity and outlining their relationships based on business rules. This often involves creating an entity- relationship (E-R) diagram to visually represent the database structure. User perspectives Specific data required by individuals or processes for particular tasks. One-to-Many Relationship Indicates that one record in one table can correspond to multiple ...

Data Management Applications C170 What is a table? A table is a persistent representation of a logical relation that is a relation whose contents can be saved for permanent use. What are the characteristics of a relational table? The characteristics of a relational table are that a table is perceived as a two-dimensional structure composed of rows and columns, each row (tuple) represents a single entity occurrence within the set, each column represents an attribute, each column has a dis...

ESSENTIAL WASTEWATER ADMINISTRATOR PRACTICE TEST 2024 What is the dominating organic entity in a solid enacted slop treatment plant? A. Followed ciliates B. rotifers C. nematodes D. single adaptable cells - ANSWER ☑☑A. Followed Ciliates A composite example should be? A. irregularly gathered in the treatment plant B. taken at one time C. examined right away D. delegate and sub-tests time divided more than 15 minutes separated - ANSWER ☑☑D. delegate and sub-tests time div...

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...

WGU C170 Chapter 1|Latest Update Complete with A+ Graded Answers 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 existin...

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...

MIST 4610 Multiple Choice Question and answers rated A+ 2024 MIST 4610 Muilitple Choice An instance is a particular occurrence of an attribute. (A): True (B): False - correct answer (B): False An instance is a particular occurrence of an Entity. What do Names of identifiers correspond to in a Table? (A): Columns (B): Primary Keys (C): Entities (D): Rows - correct answer (B): Primary Keys Which query returns the entire contents of a table? (A): FROM Buses SELECT ALL; (B)...

AREA - correct answer In DB2, a named section of permanent storage space that is reserved to store the database. associative entity - correct answer See composite entity. bridge entity - correct answer See composite entity. candidate key - correct answer A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey. See key. closure - correct answer A property of relational operators that permits the use of relational algebra operators on e...