Composite entity - Study guides, Class notes & Summaries

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...

C170 Data Management Application Questions and Answers Graded A+ AREA In DB2, a named section of permanent storage space that is reserved to store the database. associative entity See composite entity. Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:07 / 0:15 Full screen 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 ...

WGU C170 Data Management Application. Exam Review. Graded A+ 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 ta...

The Crow's Foot notation depicts the strong relationship with a(n) _____ line between the entities. Ans- solid If an employee within an EMPLOYEE entity has a relationship with itself, that relationshp is known as a _____ relationship. Ans- recursive A _____ relationship exists when three entities are associated. Ans- ternary A _____ attribute can be further subdivided to yield additional attributes. Ans- composite An entity is said to be _____-dependent if it can exist in the databa...

SER 322 Midterm Exam | Questions and Answers (Complete Solutions) What is a Composite attribute? A. An attribute that represents a value that is derivable from a related attribute or set of attributes, not necessarily in the same entity B. An attribute that holds multiple values for a single component C. An attribute composed of multiple components each with individual existence D. An attribute that holds a single value for a single entity E. An attribute composed of a single component with an...

business rule Ans- A description of a policy, procedure, or principle within an organization. For example, a pilot cannot be on duty for more than 10 hours during a 24-hour period, or a professor may teach up to four classes during a semester. candidate key Ans- A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey. See key. composite entity Ans- An entity designed to transform an M:N relationship into two 1:M relationships. The co...

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM ACTUAL EXAMS LATEST VERSIONS 300 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (100% CORRECT AND VERIFIED ANSWERS) ALREADY GRADED A+ What does modality refer to? How does it appear on ER diagram? - ANSWER- Refers to the MINIMUM number of times an instance in one entity can be associated with instance of another entity (minima) Appears as a 0 or 1 on the relationship line, next to cardinality Define: Referential Integrity - A...

Final Actual Exam for INMT 342 Questions and Answers - CORRECT ANSWER-Data that describe the properties of other data are: a. Logical Data b. Physical Data c. Metadata d. Conceptual Data - CORRECT ANSWER-Which of the following is NOT an advantage of database systems? a. improved data sharing b. program-data dependence c. better data quality d. reduced program maintenance - CORRECT ANSWER-The detailed technology-dependent specifications of the database design are created in the: ...

binary relationship Ans- An ER term for an association (relationship) between two entities. For example, PROFESSOR teaches CLASS. cardinality Ans- A property that assigns a specific value to connectivity and expresses the range of allowed entity occurrences associated with a single occurrence of the related entity. composite attribute Ans- An attribute that can be further subdivided to yield additional attributes. For example, a phone number such as may be divided into an area code...

INMT 342 Exam Set Questions and Correct Solutions physical database design purpose - CORRECT ANSWER-translate the logical description into technical specifications for storing & retrieving data physical database design goal - CORRECT ANSWER-create a design for storing data that will provide: - performance - data integrity - data security - data recoverability - simplify application development physical design process inputs - CORRECT ANSWER-- normalized relations - volume estimate...