Attribute query - Study guides, Class notes & Summaries

Chapter 3: Data Models TRUE/FALSE 1. A data model is usually graphical. ANS: T PTS: 1 2. The terms data model and database model are often used interchangeably. ANS: T PTS: 1 3. An implementation-ready data model should contain a description of the data structure that will store the end-user data. ANS: T PTS: 1 4. Within the database environment, a data model represents data structures with the purpose of supporting a specific problem domain. ANS: T PTS: 1 5. Data modeling starts with a...

True & False The objective of SOL performance tuning on the client side is to generate an SOL query that returns the correct answer in the least amount of time, using the maximum amount of resources on the server side All database transactions must display at least the properties of Atomicity, consistency, convenience, and isolation Database recovery techniques are based on the isolation transaction property which indicate that the data used during execution of a transaction cannot...

WGU D426 (v2) Revised 2024 The relationship that describes how one attribute's value can determine another's - ANSWER Functional Dependency An attribute determining the value of another attribute - ANSWER Determinant Unique and minimal attribute determining non-key attributes - ANSWER Candidate Key Defines and manages...

WGU D426 V2 Actual Exam | 160 Questions and Answers 2024 Graded A. The relationship (within the relation) that describes how the value of one attribute may be used to find the value of another attribute. Functional Dependency An attribute that can be used to find the value of another attribute in the relation. Determinant Value can be used to find the value of every other non-key attribute in the table. Unique and minimal. Candidate Key Define & manage database structures DDL Ad...

WGU D426 Objective Assessment (Latest 2024/ 2025 Update) Data Management Foundations | Questions and Verified Answers|100% Correct| Grade A Q: Data Type INT stores integer values. DECIMAL stores fractional numeric values. VARCHAR stores textual values. DATE stores year, month, and day. Q: Database Design Answer: Analysis Logical design Physical design Q: Analysis Phase, Conceptual Design, Entity-Relationship Modeling (Database Design) Answer: This phase speci...

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...

The relationship (within the relation) that describes how the value of one attribute may be used to find the value of another attribute. Functional Dependency An attribute that can be used to find the value of another attribute in the relation. Determinant Value can be used to find the value of every other non-key attribute in the table. Unique and minimal. Candidate Key Define & manage database structures DDL Adding, deleting, and modifying data - Manipulates data stored in a database...

CHAPTER SEVEN SQL FOR DATABASE CONSTRUCTION AND APPLICATION PROCESSING Prepared By David J. Auer Western Washington University DAVID M. KROENKE AND DAVID J. AUERScholarStockChapter Seven – SQL For Database Construction and Application Processing  CHAPTER OBJECTIVES  To be able to create and manage table structures using SQL statements  To understand how referential integrity actions are implemented in SQL statements  To be able to create and use SQL constraints  To und...

WGU D426 V2 Actual Exam | 160 Questions and Answers 2024 Graded A. The relationship (within the relation) that describes how the value of one attribute may be used to find the value of another attribute. Functional Dependency An attribute that can be used to find the value of another attribute in the relation. Determinant Value can be used to find the value of every other non-key attribute in the table. Unique and minimal. Candidate Key Define & manage database structures DDL Ad...

The relationship (within the relation) that describes how the value of one attribute may be used to find the value of another attribute. Functional Dependency An attribute that can be used to find the value of another attribute in the relation. Determinant Value can be used to find the value of every other non-key attribute in the table. Unique and minimal. Candidate Key Define & manage database structures DDL Adding, deleting, and modifying data - Manipula...