Superkey - Study guides, Class notes & Summaries

Entity Integrity - ️️is a basic constraint of database relational model (abbreviated RM) that refers to the morphology of the primary key but afterwards, the same format is applied to the foreign key and, also to any of simple components of any of two. The relational model states that every relation (or table) must have an identifier, called the primary key (abbreviated PK), in such a way that every row of the same relation be identifiable by its content, that is, by a unique and minima...

WGU C170 - Data Management – Applications. Exam Review Questions and answers, rated A+ 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 context o...

domain - ANSWER In data modeling, the construct used to organize and describe an attribute's set of possible values superkey - ANSWER An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. candidate key - ANSWER A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey entity integrity - ANSWER The property of a relational table that guarantees each entity has a unique value in ...

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 context of a database table, the statement "A determines B" indicates that knowing the value of attrib...

WGU C170 Data Management – Applications Correct Questions and Answers! domain - ANSWER In data modeling, the construct used to organize and describe an attribute's set of possible values superkey - ANSWER An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. candidate key - ANSWER A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey entity integrity - ANSWER The pro...

WGU C175 Pre-Assessment Data Management – Foundations Exam (Latest 2023/ 2024) Questions and Verified Answers- Grade A Q: Which data classification is an entity? A) Event B) Duration C) Directions D) Attendance Answer: Event Q: A salesperson is authorized to sell 12 products; a product can be sold by 10 salespersons. Which kind of binary relationship is described in this example? A) One-to-one B) One-to-many C) Many-to-many D) Associative Answer: Many-t...

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...

domain - Answer In data modeling, the construct used to organize and describe an attribute's set of possible values superkey - Answer An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. candidate key - Answer A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey entity integrity - Answer The property of a relational table that guarantees each entity has a unique value in a ...

WGU C170 Prerequisite pretest Exam training Questions with Rated A + Marking Scheme Latest 2024/2025 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 - cor...

WGU C175 Data Management Foundations Test Questions and Answers 2024/2025 Graded A+. They can serve as a communication tool between the users and designers. 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)...