Superkey - Study guides, Class notes & Summaries

The ________ can be described as a detailed system data dictionary that describes all objects within the database, including data about table names, the table's creator and creation date, the number of columns in each table, the data type corresponding to each column, index filenames, index creators, authorized users, and access privileges. - ️️system catalog ________ are especially useful when you are trying to determine what values in related tables cause referential integrity pro...

WGU C170 Data Management - Applications|Latest Update Complete with A+ Graded Answers Domain In data modeling, the construct used to organize and describe an attribute's set of possible values. Primary key (PK) An identifier composed of one or more attributes that uniquely identifies a row. Also, a candidate key selected as a unique entity identifier. A minimal superkey. Key One or more attributes that determine other attributes. Determination The role of a key. In the c...

C170 Data Management Application Questions and Answers Graded A+ AREA In DB2, a named section of permanent storage space that is reserved to store the database. associative entity See composite entity. Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:07 / 0:15 Full screen 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 ...

WGU C170 Study Guide (Latest 2024/ 2025 Update) Data Management Applications Exam| 100% Correct| Grade A Q: domain: In data modeling, the construct used to organize and describe an attribute's set of possible values. Q: entity integrity Answer: The property of a relational table that guarantees each entity has a unique value in a primary key and that the key has no null values. Q: equijoin Answer: A join operator that links tables based on an equality condition tha...

business rule Ans- A description of a policy, procedure, or principle within an organization. For example, a pilot cannot be on duty for more than 10 hours during a 24-hour period, or a professor may teach up to four classes during a semester. candidate key Ans- A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey. See key. composite entity Ans- An entity designed to transform an M:N relationship into two 1:M relationships. The co...

C170 - Applications - Data Management Questions and Answers Graded A+ FROM Clause that specifies the table or tables from which data is to be retrieved. Table Row Also called a tuple; represents a single entity occurrence within the entity set Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:08 / 0:15 Full screen Table Column Has a distinct name and represents an attribute Superkey An attribute or combination of at...

CPTR 424 Review 2A diagram that shows what privileges have been given to users is called a(n) A. authorization graph B. access control matrix C. wait-for graph D. DBA view A. authorization graph A functional dependency is actually a _______ relationship from attribute set A to attribute set B. A. one-to-one B. recursive C. many-to-many D. many-to-one D. many-to-one A hardware or software barrier that protects an intranet from unauthorized access is a(n) A. access control...

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 C175 Data Management Foundations Test Questions and Answers 2024/2025 Graded A+. They can serve as a communication tool between the users and designers. Which of the following is true of business rules? entity A(n) _______ is anything about which data are to be collected and stored. XML/Hybrid data model Oracle 11g is an example of the _______. entity instance Each row in the relational table is known as a(n) relational data model MySQL is an example of the _______. attribute A(n)...

WGU C170 Data Management Application. Exam Review. Graded A+ 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 existing ta...