Relational operations Study guides, Revision notes & Summaries

ICT2621 2023 Assignment 3 solution Questions: Question 1 NB: When drawing data flow diagrams (DFDs), use the Gane and Sarson symbols/notation set. 1.1 Draw, name and describe the four symbols used in a data flow diagram (DFD). You may use a table to present your answer. (6) 1.2 Briefly describe the following with respect to DFDs: 1.2.1 Levelling(2) 1.2.2 Balancing(2) 1.2.3 Data dictionary(2)1.3 Draw a diagram of an example of each of the following showing the process, and the input(s...

MTE1501 Assignment 2 (COMPLETE ANSWERS) 2024 (366844) - DUE 13 June 2024; 100% TRUSTED workings, explanations and solutions. for assistance Whats-App 0.6.7..1.7.1..1.7.3.9...... Question 1 (10) Are the following statements true or false? Where the statement is false, make it to be true. 1.1 Euclid is the Pythagorean school and contributed to philosophy and the study of proportion, plane, and solid geometry. 1.2 Zeno of Elea proposed that a unit has magnitude and is infinitely divisible. 1.3 ...

MTE1501 Assignment 2 (COMPLETE ANSWERS) 2024 (366844) - DUE 13 June 2024; 100% TRUSTED workings, explanations and solutions. for assistance Whats-App 0.6.7..1.7.1..1.7.3.9........ Question 1 (10) Are the following statements true or false? Where the statement is false, make it to be true. 1.1 Euclid is the Pythagorean school and contributed to philosophy and the study of proportion, plane, and solid geometry. 1.2 Zeno of Elea proposed that a unit has magnitude and is infinitely divisible. 1...

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...

Well-structured MTE1501 Assignment 2 (ANSWERS) 2024 - DISTINCTION GUARANTEED. (DETAILED ANSWERS - DISTINCTION GUARANTEED!)..... Question 1 (10) Are the following statements true or false? Where the statement is false, make it to be true. 1.1 Euclid is the Pythagorean school and contributed to philosophy and the study of proportion, plane, and solid geometry. 1.2 Zeno of Elea proposed that a unit has magnitude and is infinitely divisible. 1.3 Base 100, the ancient Greek numeral system, was al...

Schema The definition of how data in a database will be organized. - Create - Read - Update - Delete The basis of interacting with databases can be defined using the CRUD acronym. What does CRUD stand for? Brainpower 0:02 / 0:15 DATE: YYYY-MM-DD DATETIME: YYYY-MM-DD HH:MM:SS What is the DATE datatype syntax? What is the DATETIME datatype syntax? It will have 3 numbers before the decimal and 2 after. What does DECIMAL(3,2) indicate? Stored Procedures ...

UTA INSY 3304 - Exam 2 - Chapter 7&9 Latest 2023 Graded A Data definition language DDL Data manipulation language DML CREAT SCHEMA AUTHORIZATION Creates a database schema CREATE TABLE Creates a new table in the user's databse schema NOT NULL Ensures that a column will not have null values UNIQUE Ensures that a column will not have duplicate values PRIMARY KEY Defines a primary key for a table FOREIGN KEY Defines a foreign key for a table DEFAULT Defines a default value for a column ( wh...

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...

ISDS 3003 Final Exam Review 2023 complete solution. A relational database is ________ A. a self-describing collection of related tables B. a library of queries and data files for querying C. a set of applications and the data sets for those applications D. a set of metadata E. a collection of forms and reports that support a given purpose - a self-describing collection of related tables Data mining applications are used to accomplish all of the following tasks except ________ ...

Which phase of the cloud data life cycle allows both read and process functions to be performed? A Create B Archive C Store D Share A Which phase of the cloud data security life cycle typically occurs simultaneously with creation? A Share B Store C Use D Destroy B 00:57 01:12 Which phase of the cloud data life cycle uses content delivery networks? A Destroy B Archive C Share D Create C Which phase of the cloud data life cycle is associated with crypt...

WGU-C838 2023 -2024 Exam Questions With Correct Answers "Which phase of the cloud data lifecycle allows both read and process functions to be performed? (A) Share (B) Store (C) Create (D) Archive" - CORRECT ANSWER Create "Which phase of the cloud data security lifecycle typically occurs simultaneously with creation? (A) Use (B) Share (C) Store (D) Destroy" - CORRECT ANSWER Store "Which phase of the cloud data life cycle uses content delivery...