External schema Study guides, Class notes & Summaries

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...

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 ( whe...

ILTS ECE 206 Practice Exam Which of these is NOT one of the major personality structures proposed by Sigmund Freud in his psychoanalytic theory of development? A. Id B. Ego C. Libido D. Superego - C. Libido Libido: apart of the Id, it represents psychic energy as well as sex drive ID: generates unconscious impulses EGO: realistically regulates acting on id impulses superego: regulates the id and ego To support EC language development, experts advise which of the following teac...

1) Which of the following can be viewed as a function(s) or advantage(s) of theories? A. A theory summarises and explains presently known facts B. A theory aims to predict future behaviour C. A theory stimulates new research D. All of the above E. None of the above 1. a & b 2. d 3. e 2) Learning theories made valuable contributions to child psychology because they ... A. Regarded culture as an important factor. B. Paid adequate attention to developmental change. C. Created an awarene...

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...

PRAXIS II- Interdisciplinary Early Childhood Education (5023) Exam Practice Questions 2023 Update From birth to around two years old, children are in Piaget's ______ stage(s) of cognitive development. - ANS-Sensorimotor Which of the following is/are a substage(s) of Piaget's sensorimotor cognitive developmental stage? - ANS-All of the above: Primary circular reactions, Secondary circular reactions, Coordination of reactions, Tertiary circular reactions According to Piaget's theor...

Test Bank for CB 9th Edition by Barry J. Babin, Eric Harris. ISBN-13: 8205 Full Chapters test bank includes Multiple Choice questions with answers, True False. Contents Chapter 1: What Is CB and Why Should I Care? 1-1: Consumption and Consumer Behavior 1-2: The Ways in Which Consumers Are Treated 1-3: The CB Field’s Role in Business, Society, and for Consumers 1-4: Different Approaches to Studying Consumer Behavior 1-5: Consumer Behavior Is Dynamic Chapter 2: Value and the Consume...

Fundamentals of the Databricks Lakehouse Platform Accreditation QUESTIONS WITH 100% SOLUTIONS LATEST UPDATE 2023 Maintaining and improving data quality is a major goal of modern data engineering. Which of the following contributes directly to high levels of data quality within the Databricks Lakehouse Platform? Select two responses. - ANSWER schema evolution, Data expectations enforcement Which of the following describes how the Databricks Lakehouse Platform makes data governa...

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...

Social Psychology (EPPP) Latest Update with Verified Solutions Primacy Effect - our impressions are usually swayed the most by information received early in an interaction False Consensus Bias - overestimation of the degree to which the beliefs and opinions of others are similar to our own Factors that Affect Impression Formation: Central Traits - certain descriptions (e.g., a warm vs. cold person) influence impressions more than others because they provide unique information and...