Crows foot notation - Study guides, Class notes & Summaries

WGU D426 Study Guide (Latest 2024/ 2025 Update) Data Management Foundations | Questions and Verified Answers|100% Correct| Grade A Q: Crows Foot Notation Depicts cardinality as a circle (zero), or a short line (one), or three short lines (many). The short likes look like a bird's foot. Q: Single-level index Answer: A file containing column values, along with points to rows containing the column value. Q: Multi-column index Answer: A composite of values from all indexed ...

WGU C170 Exam (New 2024/ 2025 Update) Data Management Applications Exam| 100% Correct| Graded A QUESTION What type of integrity is enforced when a primary key is declared? Answer: Creating a primary key constraint enforces entity integrity (i.e. no part of the primary key can contain a null and the primary key values must be unique). QUESTION What is a recursive relationship? Given an example. Answer: A recursive relationship exists when an entity is related to itse...

WGU D426 Objective Assessment V2 (Latest 2024/ 2025 Update) Data Management Foundations | Questions and Verified Answers|100% Correct| Grade A Q: SUBQUERY Sometimes nested query or inner query, which is a query within another SQL query Q: ALIAS Answer: Temporary name assigned to a column or table Q: Flattening Answer: Replaces a subquery with an equivalent join Q: Entity Answer: Person, place, product, concept, or activity Q: Relationship Answer: A st...

ISA 245 Chapter 2 Exam With 100% Correct And Verified Answers

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...

MIST part A final questions and answers| latest updated What is a database? DBMS? - A database is an organized collection of data. - The software application that lets you create and work with a database is called a database management system (DBMS) Database vs. spreadsheet as a tool for data storage - Security: Administrator can grant each user a different level of access, - Elimination of redundant data via relational model - Data Access: Multiple types of users can query a single...