Wgu c170 data manag Study guides, Class notes & Summaries

WGU C170 Data Management – Applications, Exam Review. Rated A+

WGU C170 Data Management Applications (over 200 Questions & Answers) What is a table? A table is a persistent representation of a logical relation that is a relation whose contents can be saved for permanent use. What are the characteristics of a relational table? The characteristics of a relational table are that a table is perceived as a two-dimensional structure composed of rows and columns, each row (tuple) represents a single entity occurrence within the set, each column represents an...

A database model - -is a conceptual framework for database software The relational model - -is a database model based on mathematical principles, with three parts: 1. A data structure that prescribes how data is organized. 2. Operations that manipulate data structures. 3. Rules that govern valid relational data. A domain - -is a named set of possible database values, such as integers, dictionary words, or logical values TRUE and FALSE. A tuple - -is a finite sequence of values, each drawn...

WGU C170 Data Management Applications (over 400 Questions And Answers) Recent Update 2023 Download to Pass..docx

domain - Answer-In data modeling, the construct used to organize and describe an attribute's set of possible values superkey - Answer-An attribute or attributes that uniquely identify each entity in a table. Any composite key with this is also this. candidate key - Answer-A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey entity integrity - Answer-The property of a relational table that guarantees each entity has a unique value in a ...

WGU C170 Data Management Applications Practice Exam Questions (over 400 Questions & Answers) A salesperson is authorized to sell many products and a product can be sold by many salespersons. Which kind of binary relationship does this scenario describe? A One-to-one B One-to-many C One-to-one binary D Many-to-many Correct answer- D 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-o...

A database model - correct answer is a conceptual framework for database software The relational model - correct answer is a database model based on mathematical principles, with three parts: 1. A data structure that prescribes how data is organized. 2. Operations that manipulate data structures. 3. Rules that govern valid relational data. A domain - correct answer is a named set of possible database values, such as integers, dictionary words, or logical values TRUE and FALSE. A tupl...

Sales order 1NF WGU C170 Data Management - Applications Performance Assessment. EXPLANATION: I am going to call this table the "Order Table" I also need to make sure that this table contains a primary Key, in this particular table I am going to make the “OrderID” and “DonutID” the Primary Key (composite key), the reason I chose to use OrderID and DonutID as the primary key is because Order ID or DonutID by themselves do not guarantee Uniqueness but when combined uniqueness ...

WGU C170 Data Management SQL Problem Solving Questions and ChatGPT' Solutions 2024/2025 Structural Constraints: - correct answer Rules that apply to all relational databases and dictate the structure of data. Business Policies: - correct answer Specific rules for a given database and application that govern the data. NULL - correct answer Represents missing data in a special value format. Operator - correct answer A symbol that calculates a value based on one or more operands. IS...