It c170 - Study guides, Class notes & Summaries

WGU C170 Exam (New 2024/ 2025 Update) Data Management Applications Exam| 100% Correct| Graded A QUESTION What type of integrity is enforced when a primary key is declared? Answer: Creating a primary key constraint enforces entity integrity (i.e. no part of the primary key can contain a null and the primary key values must be unique). QUESTION What is a recursive relationship? Given an example. Answer: A recursive relationship exists when an entity is related to itse...

C170 2023 Latest Update Correct Questions & Answers(graded A+) C170 2023 Latest Update Correct Questions & Answers(graded A+) Access plan - ANSWER A set of instructions generated at application compilation time that is created and managed by a DBMS. The access plan predetermines how an application's query will access the database at run time. Alias - ANSWER An alternative name for a column or table in a SQL statement. ALTER TABLE - ANSWER The SQL command used to make changes to tabl...

IT WGU C170 Performance Assessment Section 1 First Normal Form I gathered all the data from the sales invoice and created an unnormalized dataset. I determined the primary key that provided me with a unique value for all my records in this table. I used composite primary keys because both keys would be able to uniquely identify all the data in the table. Finally, I removed all the repeating groups and made the address atomic by creating separate fields for each one. There is a...

WGU C170 - Data Management Applications.|A+ Graded Update 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? Many-to-many Which two examples are attributes? An employee number; A meeting code Which delete rule sets column values in a child table to a missing value when the matching data is deleted from the parent table? Set-to-null Refer to the given SQL statement. ...

Data Management Applications C170 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 attribute, each column has a dis...

WGU C170 SQL Applicability Problem set study Exam Questions and Complete answers Guaranteed Success 2024/2025 Two attributes in two related tables have the exact same domain of values. The attribute is a primary key in one table. Which kind of key is the attribute in the other table Foreign Primary Compound Composite - correct answer Foreign Which command creates a database only if it does not already exist IF NOT EXISTS db_name ; CREATE DATABASE IF NEW db_name ; CREA...

WGU C170 Terms.|Latest Update Complete with A+ Graded Answers Associative Entity All relationships for the (...) entity should be many. Attribute An (...) is a property or characteristic of an entity. Binary relationship A (...) is a relationship between two entity types. Cardinality (...) represents the maximum number of entities that can be involved in a particular relationship. Cascade Delete Will delete all records that reference the primary key Database A (.....

WGU C170 Chapter 1|Latest Update Complete with A+ Graded Answers AREA In DB2, a named section of permanent storage space that is reserved to store the database. associative entity See composite entity. bridge entity See composite entity. candidate key A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey. See key. closure A property of relational operators that permits the use of relational algebra operators on existin...

WGU C170 Objective Assessment With Complete Solution WGU C170 Objective Assessment – Edward M Burke First Normal Form – 1 Table I gleaned this table from the unstructured data contained within the order form. I made sure not to have any redundant groups, and each column in thetable will contain atomic values. Donut ID, Donut Name, Donut Quantity, UnitPrice, and Donut Description are an example of a repeating group. As I mentioned earlier, in order to achieve first normal form, we mu...

WGU C170 Data Management Critical and Objective Assessment Exam Questions and verified and correct Marking Scheme Newest 2024/2025 Which line, when added to the end of the statement, returns the total number of each kind of product-by-product number - correct answer GROUP BY PRODNUM; Which data definition language statement affects databases or objects in them - correct answer ALTER What does the DELETE statement do - correct answer It removes rows from a table. Which condition must ...