Entity relations - Study guides, Class notes & Summaries

A child says "red crayon." This is an example of which type of semantic relations? A. Attribute + entity B. Action + locative C. Agent + action D. Attribute + locative Ans-A. attribute + entity You have been asked to give a workshop to a group of parents of infants who attend a developmental nursery. The parents are interested in what they can do to communicate more successfully with their infants. Most of the infants are between 1 and 10 months of age. Most of the parents do not h...

WGU C792 Task 2: Entity Relationship Diagram. Throughout my career as a nurse, I've been aware of the importance of databases for tracking patient information. But, prior to this position, I had zero database experience. This project taught me a lot about databases, database design, and data modeling. DMBS is a piece of software designed to answer questions about data by storing it, retrieving it, and processing it. As an interface, the DMBS lets users add, view, modify, and remove records ...

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...

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...

MISY 5335 Questions and Answers Already Passed Why Use a Database? Databases are essential for organizing and managing information efficiently. The relational database is the most common type, although nonrelational databases (popular in online platforms like Facebook and Twitter) are increasingly prevalent. What are the Issues with Using Lists? Using lists can lead to problems when making modifications, such as inconsistencies in data updates. Modification Issue Occurs when stori...

RHIA Exam 267 Questions with Verified Answers A method of documenting nurses' progress notes by recording only abnormal or unusual findings or deviations from the prescribed plan of care is called: - CORRECT ANSWER Charting by exception The discharge summary must be completed within _________ after discharge for most patients but within ________ for patients transferred to other facilities. Discharge summaries are not always required for patients who were hospitalized for fewer than _____...

BCIS 4610 exam 2 study guide Questions with complete solution 2024 BCIS 4610 exam 2 study guide conceptual - correct answer The entity-relationship model is a ______ data modeling used to capture the overall structure of data in an organization. entity - correct answer In the ER model, a person, place, object, event or concept in the user environment about which data is to be maintained is called a(n) attribute - correct answer In the ER model, a named property or characteristic ...

C175 - Data Management Foundations PA| Actual Exam Questions And Answers 2025 With Complete Solutions (WGU) 1. Which classification is correct for the box marked "Quantity" in the given entity-relationship diagram? a) Entity b) Attribute c) Relationship d) Intersection data 2. Which data classification is an entity? a) Event b) Object c) Process d) Event 3. What is the entity-relationship diagram about a car rental agency showing? a) One manufacturer created at le...

HSA 3110-Principles of Health Service Administration Questions with Complete Solutions Why do healthcare organizations seek restructuring? - Correct Answer The desire to express an overall value of promoting comprehensive, readily accessible care by shoring up smaller community-based facilities, keeping them from closure • The need for improved efficiencies resulting from centralized administrative practices such as financial and health information resource streamlining or public relations...

TYPICAL QUESTIONS & ANSWERS OBJECTIVE TYPE QUESTIONS Each question carries 2 marks. Choose the correct or best alternative in the following: Q.1 In the relational modes, cardinality is termed as: (A) Number of tuples. (B) Number of attributes. (C) Number of tables. (D) Number of constraints. Ans: A Q.2 Relational calculus is a (A) Procedural language. (B) Non- Procedural language. (C) Data definition language. (D) High level language. Ans: B ...