Database system dbms Study guides, Class notes & Summaries

INF assignment 2 CASE After graduating from university with a BTech degree in Information Systems, you are appointed as a system analyst at Logic Designs, a software development vendor. Logic Designs has been hired by E-beats_Africa, a digital marketing company that specialises in promoting and monetizing TikTok artists and their creative content. E-beats_Africa assigns talent agents1 to TikTokers to market and sell creative content. Creative content is defined as a 15 second to 3-minute recor...

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 ...

WGU D426 Data Management Foundations Final Exam (Latest 2023/ 2023 Update) | Questions and Verified Answers|100% Correct| Grade A Q: Architecture Answer: Describes the internal components AND the relationships between components. Q: Query Processor Answer: Interprets queries, creates a plan to modify the database or retrieve the data, and returns query results to the application. Performs query optimization. Q: Query Optimization Answer: Ensures efficient instr...

Test Bank For Database Systems, Design, Implementation and Management 13th Edition Carlos Coronel Steven morris | Complete 2023. A data warehouse can store data derived from many sources. a. True b. False ANSWER: True DIFFICULTY: Easy REFERENCES: 1-3b Types of Databases LEARNING OBJECTIVES: 01.02 - Describe what a database is, the various types of databases, and why they are valuable assets for decision making 13. Structure is based on the type of processing to be performed on the data....

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...

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...

WGU C175 Data Management – Foundations Final Exam (Latest 2023/ 2024) Questions and Verified Answers- Grade A Q: A one-to-many unary relationship allows an occurrence of the entity type on the "one side" of the relationship to be associated with . a) a single occurrence of the same entity type b) multiple occurrences of the same entity type c) a single occurrence of the different entity type on the "many side" of the relationship d) multiple occurrences of the different en...

data vs. information data is raw facts and information is data in context database management is a field that focuses on the proper generation, storage, and retrieval of data Database is a shared integrate computer structure that store a collection of end user data and meta data meta data data about data: the characteristics and relationships that link data i.e. the name of each data element and the type of data stored DBMS database management system basically ma...

INF3703 databases SUMMARY 2022/2023 Database Design 9-1 The Information System [p.440] A database is a carefully designed and constructed repository of facts. The database is part of a large whole known as an Information System, which provides for data collection, storage, transformation, and retrieval. Systems analysis is the process that establishes the need for an information system and its extent. The process of creating an information system is known as systems development. The per...

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...