Tuple - Samenvattingen, Notities en Examens

What are tuples and how are they used in databases? a.) A tuple is a collection of sequenced data fields b.) A tuple is one record or data set in a row c.) A tuple is a database field - Answer A tuple is one record or data set in a row What is the best description of a flat file database? a.) Flat file databases are hierarchical in nature. b.) Flat file databases are prevalent today because they provide relational functions. c.) The flat file design is a single table database. - Answer Th...

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...

codehs unit 7 python complete solution 7.1.7 Fix This Tuple - ANSWER-my_tuple = (0, 1, 2, "hi", 4, 5) # Your code here... my_tuple = my_tuple[:3] + (3,) + my_tuple[4:] print(my_tuple) 7.1.8: Citation - ANSWER-def citation(names): author_name = ((names)) name = str(names[2]) + ", " + str(names[0]) + " " + str(names[1]) return name print(citation(["Martin", "Luther", "King, Jr."])) 7.1.9: Diving Contest - ANSWER-# fill in this function to return the total of the three judge...

A tuple is one record or data set in a row -What are tuples and how are they used in databases? a.) A tuple is a collection of sequenced data fields b.) A tuple is one record or data set in a row c.) A tuple is a database field The flat file design is a single table database -What is the best description of a flat file database? a.) Flat file databases are hierarchical in nature. b.) Flat file databases are prevalent today because they provide relational functions. c.) The flat file desig...

DBI202 FINAL EXAM REAL EXAM QUESTIONS AND CORRECT ANSWERS (NEWEST VERSION) Which of the followings is false about weak entity set? Choose one answer. a. Every many - one relationship from a weak entity set need be supporting b. The key for a weak entity set includes the keys for all supporting entity sets c. A weak entity set has one or more relationships to other (supporting) entity sets d. Do not construct a relation for any supporting relationship - Answer b. The key for a we...

WGU C170 Data Management Applications (over 200 Questions & Answers) What is a table? A table is a persistent representation of a logical relation that is a relation whose contents can be saved for permanent use. What are the characteristics of a relational table? The characteristics of a relational table are that a table is perceived as a two-dimensional structure composed of rows and columns, each row (tuple) represents a single entity occurrence within the set, each column represents an...

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...

A tuple is one record or data set in a row - Answer-What are tuples and how are they used in databases? a.) A tuple is a collection of sequenced data fields b.) A tuple is one record or data set in a row c.) A tuple is a database field The flat file design is a single table database - Answer-What is the best description of a flat file database? a.) Flat file databases are hierarchical in nature. b.) Flat file databases are prevalent today because they provide relational functions. c.) T...

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM ACTUAL EXAM 2 LATEST VERSIONS 300 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (100% CORRECT AND VERIFIED ANSWERS)LATEST 2023|ALREADY GRADED A+ 2 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 What is an important ...

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...