Truncate table Study guides, Class notes & Summaries

The relationship (within the relation) that describes how the value of one attribute may be used to find the value of another attribute. - Answer- Functional Dependency An attribute that can be used to find the value of another attribute in the relation. - Answer- Determinant Value can be used to find the value of every other non-key attribute in the table. Unique and minimal. - Answer- Candidate Key Define & manage database structures - Answer- DDL Adding, deleting, and modifying da...

Forms-Based Query Language uses a GUI-panel (interactive visual components) for the creation of a query entering data values directly into a query templet lend itself well to users who are more accustomed to GUI environments than to typing commands ex: database user defines queries by entering sample data values directly into a query template to represent the result that the database is to achieve Command-Based Query Language uses written text commands for the creation of a que...

Database Application Software that helps business users interact with database systems. Database Administrator Responsible for securing the database system against unauthorized users. A database administrator enforces procedures for user access and database system availability. Authorization Many database users should have limited access to specific tables, columns, or rows of a database. Database systems authorize individual users to access specific data. Rules Database...

Phases in Data Analytics - Data requirement gathering - Data source identification - Data cleaning - Data processing - Exploratory data analysis Types of Analytics - Descriptive analytics - Diagnostic analytics - Predictive analytics - Cognitive analytics - Prescriptive analytics Roles in data science - Data analyst - Business analyst - Data engineer - Data scientist - Database admin Data analyst - jack of all traits - PowerBI (minimal/no code) - PM / stake...

WGU D426 V2 EXAM 2024 WITH 100% CORRECT ANSWERS The relationship (within the relation) that describes how the value of one attribute may be used to find the value of another attribute. - correct answer Functional Dependency An attribute that can be used to find the value of another attribute in the relation. - correct answer Determinant Value can be used to find the value of every other non-key attribute in the table. Unique and minimal. - correct answer Candidate Key Define & manage...

Create Database Syntax - Answer-CREATE DATABASE db_name; Simple SFW query syntax - Answer-SELECT * FROM db_name WHERE column_name operator value; Cardinality: Inside or outside? - Answer-Outside Modality: Inside or outside? - Answer-Inside What commands are used with data definition? - Answer-create, alter, drop, truncate, comment, rename What commands are used with data manipulation? - Answer-Select, Insert, Update, Delete, Merge, Call, Explain Plan, Lock Table Create Table Syntax - Ans...

DBI 202 Exam (Full) | Questions and Answers (Complete Solutions) QN=1 (6803) A ____ is a logically coherent collection of data with some inherent meaning, representing some aspect of real world and being designed, built and populated with data for a specific purpose a. Database b. Database Instance c. Schema d. Schema Instance QN=2 (6801) Choose the most correct statement. a. Database is created and maintained by a DMBS b. All of the others c. Database is a collection of data that is managed b...

Which kind of relationship is displayed in this entity-relationship diagram? A Many-to-many unary B Many-to-many binary C One-to-one unary D One-to-one binary A Which kind of relationship is displayed in this entity-relationship diagram? A Binary many-to-many B Unary one-to-one C Ternary many-to-many D Ternary one-to-one D Unary many-to-many E Binary one-to-one B How is this portion of the entity-relationship diagram read, from left to right? A At least one book was written by an author. B Only ...

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 3 multiple choice options An attribute that can be used to find the value of another attribute in the relation. Determinant 3 multiple choice options Value can be used to find the value of every other non-key attribute in the table. Unique and minimal. Candidate Key 3 multiple choice options Define & manage database st...

WGU D426 V2 Complete Answers 100% Correct (Latest 2024) STUDY GUIDE 1. The relationship (within the relation) that describes how the value of one attribute may be used to find the value of another attribute. Answer: Functional Dependency 2. An attribute that can be used to find the value of another attribute in therelation. Answer: Determinant 3. Value can be used to find the value of every other non-key attribute in thetable. Unique and minimal. Answer: Candidate Key 4. Define & m...