Binary relat - Study guides, Class notes & Summaries

WGU C170 Chapter 2, Exam Review. 100% Accurate. Rated A+ binary relationship - -An ER term for an association (relationship) between two entities. For example, PROFESSOR teaches CLASS. cardinality - -An attribute that can be further subdivided to yield additional attributes. For example, a phone number such as may be divided into an area code (615), an exchange number (898), and a four-digit code (2368). Compare to simple attribute. composite identifier - -In ER modeling, a key compo...

C170 QUESTIONS WITH SOLUTIONS 2023 Access plan 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 An alternative name for a column or table in a SQL statement. Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:05 / 0:15 Full screen ALTER TABLE The SQL command used to make ...

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? - correct answersMany-to-many Which two examples are attributes? - correct answers 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? - correct answersSet-to-Null member_id INT UNSIGNED NOT NULL AUTO_INCREMENT, PRIMARY ...

"A salesperson works in one office." What is the name of this relationship? - ANSWER One-to-one binary relationship "A salesperson sells to many customers." What is the name of this relationship? - ANSWER One-to-many binary relationship "A salesperson is authorized to sell many products, and a product can be sold by many salespersons." What is the name of this relationship? - ANSWER Many-to-many binary relationship What is the positioning and meaning for Cardinality and M...