Composite primary key - Study guides, Class notes & Summaries

AREA Ans- In DB2, a named section of permanent storage space that is reserved to store the database. candidate key Ans- A minimal superkey; that is, a key that does not contain a subset of attributes that is itself a superkey. closure Ans- A property of relational operators that permits the use of relational algebra operators on existing tables (relations) to produce new relations. composite entity Ans- An entity designed to transform an M:N relationship into two 1:M relationships...

1. The product of two tables is also called the ___ product. a. Cartilage b. Cathode c. Cartesian d. Cardigan correct answers c. Cartesian 2. Which command will grant SELECT rights to user Franklin for Rep table? a. GRANT SELECT ON Rep; b. GRANT SELECT ON Rep TO FRANKLIN; c. GRANT ON Rep TO FRANKLIN; d. GRANT SELECT ON FRANKLIN; correct answers b. GRANT SELECT ON Rep TO FRANKLIN; 3. To use the AND criterion, place the criteria on the ___ criteria row in the design grid. a. tow a...

WGU C175 Data Management Foundations Final Exam Questions and Answers 2024/2025 Graded A+ . 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) _______ is the equivalent of a field in a file system. entity re...

WGU D426 Study Guide (Latest 2024/ 2025 Update) Data Management Foundations | Questions and Verified Answers|100% Correct| Grade A Q: Crows Foot Notation Depicts cardinality as a circle (zero), or a short line (one), or three short lines (many). The short likes look like a bird's foot. Q: Single-level index Answer: A file containing column values, along with points to rows containing the column value. Q: Multi-column index Answer: A composite of values from all indexed ...

WGU C175/D426 DATA MANAGEMENT FOUNDATIONS OA EXAM ACTUAL EXAMS LATEST VERSIONS 300 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (100% CORRECT AND VERIFIED ANSWERS) ALREADY GRADED A+ What does modality refer to? How does it appear on ER diagram? - ANSWER- Refers to the MINIMUM number of times an instance in one entity can be associated with instance of another entity (minima) Appears as a 0 or 1 on the relationship line, next to cardinality Define: Referential Integrity - A...

WGU - D426 Exam; Questions and Answers 100% Correct A ____ is a column, or group of columns, used to identify a row. Correct answer Primary key A ____ consists of a single column. Correct answer Simple primary key A ____ key consists of multiple columns. Correct answer Composite primary All primary keys columns are necessary for uniqueness. When any column is removed, the resulting simple or composite column is no longer unique. Correct answer Minimal The ____ constraint in the CREATE...

CLC 056 exam Analyzing Contract Costs Exam (contains 55 questions) • Here is your test result.The dots represent the choices you have made. • The highlighted questions are the questions you have missed. • Remediation Accessed shows whether you accessed those links.'N' represents links not visited and 'Y' represents visited links. The offeror customarily treats similar costs as “other direct costs” under similar circumstances The proposed cost benefits only the proposed contract work Th...

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...

MISY 5300 Final Review Latest Update Graded A+ Steps in conceptual level design Defining the necessary attributes for each entity and outlining their relationships based on business rules. This often involves creating an entity- relationship (E-R) diagram to visually represent the database structure. User perspectives Specific data required by individuals or processes for particular tasks. One-to-Many Relationship Indicates that one record in one table can correspond to multiple ...

AMT Airframe Written Test (FAA) Questions and Answers Already Passed What is the primary benefit of using composite materials in aircraft construction? They provide high strength-to-weight ratios and corrosion resistance, enhancing performance and longevity. How do winglets improve an aircraft's efficiency? They reduce induced drag by controlling the airflow around the wingtip, leading to better fuel efficiency. What is the purpose of the aircraft's pitot-static system? To m...