Tuples Study guides, Revision notes & Summaries

WGU C724 Information Systems Management Unit 4 Test Already Passed 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...

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...

Quiz: Query Optimization _ Consider the relations r1( A, B, C), r2(C, D, E ), and r3( E , F), with primary keys A, C, and E, respectively. Assume that r1 has 1000 tuples, r2 has 1500 tuples, and r3 has 750 tuples. Estimate the size of r1 ⋈ r2 ⋈ r3, and give an efficient plan for computing the join.

return statements can return ___ value - only one special elements which allow return to be "multiple" elements - tuples and lists a function with no return value returns... - "None" def user_function(number + 5), valid or invalid? - invalid parameters = - = variables

Database Model - ANSWER-is a conceptual framework for database systems, with three parts 3 Parts of the Database Model - ANSWER-Data structures, operations, rules Data structures - ANSWER-prescribe how data is organized Operations - ANSWER-manipulate data structures Rules - ANSWER-govern valid data Big Data - ANSWER-characterized by unprecedented data volumes and rapidly changing data structures. Set - ANSWER-is an unordered collection of elements enclosed in braces. Ex: {a,...

Engineering 102 Final Exam questions with Complete Solutions |100% Pass return statements can return ___ value - only one special elements which allow return to be "multiple" elements - tuples and lists a function with no return value returns... - "None" def user_function(number + 5), valid or invalid? - invalid parameters = - = variables arguments = - = values rules for mixing keyword arguments and positional arguments (2) - 1) keyword arguments mut follow positional arguments in t...

Uopeople Week 7 CS 1101 Self-Quiz Rated A+ Python dictionaries are mutable true Which of the following types are allowed for Python dictionary values? a. dictionary b. list c. list of dictionaries d. tuple e. All of the above e. All of the above If you use a Python dictionary in a for statement, it traverses the _____ of the dictionary. a. values and keys b. indices c. keys and values d. values e. keys e. keys Python tuples are immutable. True False true Python ...

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 d...

WGU C724 Information Systems Management Unit 4 Test 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 tod...

Firewall - A part of a computer system or network designed to block unauthorized access while permitting outward communication. Stateful Inspection Firewall - The inbound and outbound data packets are compared to determine if a connection should be allowed. Proxy Server - The client gets access to the network via the ____________________________. This step is used to authenticate the user, establish the session, and set policies. Packet Filtering Firewall - Can also limit information mo...