Referential integrity - Study guides, Class notes & Summaries

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM -with 100% verified solutions- CORRECT AND VERIFIED ANSWERS)|ALREADY GRADED A+ VERSION A What does modality refer to? How does it appear on ER diagram? - ANSWERRefers 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 - ANSWER- Requires that ALL foreign key values must either be...

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 C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM -with 100% verified solutions- CORRECT AND VERIFIED ANSWERS)|ALREADY GRADED A+ VERSION A What does modality refer to? How does it appear on ER diagram? - ANSWERRefers 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 - ANSWER- Requires that ALL foreign key values must either be...

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM -with 100% verified solutions- CORRECT AND VERIFIED ANSWERS)|ALREADY GRADED A+ VERSION A What does modality refer to? How does it appear on ER diagram? - ANSWERRefers 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 - ANSWER- Requires that ALL foreign key values must either be...

WGU C170 DATA MANAGEMENT – APPLICATIONS EXAM 2024 WITH 100% CORRECT ANSWERS In data modeling, the construct used to organize and describe an attribute's set of possible values - correct answer domain An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. - correct answer superkey A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey - correct answer candidate key The pr...

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM ACTUAL FINAL EXAM LATEST VERSIONS 100 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (100% CORRECT AND VERIFIED ANSWERS)|ALREADY GRADED A+ What is a broad definition of data? - ANSWER Raw facts that are captured on printed or digital media What are data? - ANSWER Facts that are collected and store...

WEST GOVERNORS UNIVERSITY: D426/C175 DATA MANAGEMENT FOUNDATIONS OA EXAM 2024/ 2 LATEST UPDATE EXAMS(VERSION A&B) 400 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES /TOP PRIORITY EXAMS GRADED A+ WITH PASS ASSURANCE VERSION 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...

WGU D426 V2 Questions and Answers Already Passed What is a transaction in the context of a database? A transaction is a sequence of database operations that are treated as a single unit, ensuring that all operations are completed successfully or none at all, to maintain data integrity. What are ACID properties in database management? ACID properties—Atomicity, Consistency, Isolation, Durability—ensure that database transactions are processed reliably and maintain data integr...

WEST GOVERNORS UNIVERSITY: D426/C175 DATA MANAGEMENT FOUNDATIONS OA EXAM 2024/ 2 LATEST UPDATE EXAMS(VERSION A&B) 400 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES /TOP PRIORITY EXAMS GRADED A+ WITH PASS ASSURANCE VERSION 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...

What is a broad definition of data? Raw facts that are captured on printed or digital media What are data? Facts that are collected and stored in a database system What is a determining characteristic of unstructured data? It does not follow a data model. Which is true about flat files? They contain no internal hierarchical organization. Which technology has no internal hierarchy? Flat files How were data retrieved before database management systems? Sequ...