Multivalued attribute - Study guides, Class notes & Summaries

DBMS chapter 4 questions and answers Entity Relationship Model ERM stand for? ERDs depict databases main components: Entities, Attributes , Relationships ERD represents conceptual database as viewed by end users ER model forms the basis of an ER diagram Characteristic of entities Chen notation, Crow's Foot notation Crows Foot notation attributes written in attribute box below entity rectangle Chen notation attributes represented by ovals connec...

WGU C170 Chapter 2.|Latest Update Complete with A+ Graded Answers binary relationship An ER term for an association (relationship) between two entities. For example, PROFESSOR teaches CLASS. cardinality 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 (615), an exchange number (898), and a four-digit code (2368). Compare to simple attribute. composite identifier In ER modeling, a key co...

Data Management Foundations WGU C175 questions and answers, 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 _______. ...

3 Vs - Correct Answer-Three basic characteristics of Big Data databases: volume, velocity, and variety. abstract data type (ADT) - Correct Answer-Data type that describes a set of similar objects with shared and encapsulated data representation and methods. A(n) is generally used to describe complex objects. See also class. ad hoc query - Correct Answer-A "spur-of-the-moment" question. alias - Correct Answer-An alternative name for a column or table in a SQL statement. ALTER TABLE ...

An entity is said to be X -dependent if it can exist in the database only when it is associated with another related entity occurrence. - existence A table that has all key attributes defined has no repeating groups and all its attributes are dependent on the primary key is said to be in X. - 1nf A determinant is any attribute whose value determines other values within a column. - F X is a process that is used for changing attributes to entities. - Normalization Any attribute whose value d...

3 Vs - Correct Answer-Three basic characteristics of Big Data databases: volume, velocity, and variety. abstract data type (ADT) - Correct Answer-Data type that describes a set of similar objects with shared and encapsulated data representation and methods. A(n) is generally used to describe complex objects. See also class. ad hoc query - Correct Answer-A "spur-of-the-moment" question. alias - Correct Answer-An alternative name for a column or table in a SQL statement. ALTER TABLE ...

Info 364 Pop Quiz 4 Exam Questions With Verified Answers 1) A ________ defines or constrains some aspect of the business. A) business constraint B) business structure C) business control D) business rule - answerD) Business Rule 2) Which of the following is an entity that exists independently of other entity types? A) Codependent B) Weak C) Strong D) Variant - answerC) Strong 3) An entity type whose existence depends on another entity type is called a ________ entity. A) strong B) weak C...

BCIS 4610 FINAL EXAM, UNT. Conceptual Data Modeling - Answer- a detailed model that captures the overall structure of data in an organization Two perspectives on data modeling: - Answer- -Top-down approach for a data model is derived from an intimate understanding of the business. -Bottom-up approach for a data model is derived by reviewing specifications Entity-Relationship data model - Answer- A detailed, logical representation of the entities, associations, and data elements for an ...

WGU C170 EXAM QUESTIONS AND ANSWERS ALL CORRECT An entity is said to be X -dependent if it can exist in the database only when it is associated with another related entity occurrence. - CORRECT ANSWERS existence A table that has all key attributes defined has no repeating groups and all its attributes are dependent on the primary key is said to be in X. - CORRECT ANSWERS 1nf A determinant is any attribute whose value determines other values...

CIS 505 Week 1|Complete Questions with 100% Correct Answers OLTP Online Transaction Processing OLAP online analytical processing transactional database A database designed to keep track of the day-to-day transactions of an organization. Analytical Data Store Stores historical transactional and summary data relational database Most common structure for database. *Distinguished by multiple tables with interrelated fields. *When queried, data can be pulled form any # of relations that ...