Dbi202 - Study guides, Class notes & Summaries

DBI202 Exam |Questions with 100% Correct Answers

DBI202 - FA20 (QUIZ 1, 2, 4, 5) QUESTIONS WITH CORRECT ANSWERS Of the various database models, the _______ model is the most prevalent today a. relational b. hierarchical c. linked list d. network CORRECT ANSWER A Each column in a relation is called _______. Select one: a. a tuple b. an attribute c. an attitude d. a union CORRECT ANSWER B Each row in a relation is called _______. Select one: a. an attitude b. a tuple c. an attribute d. a union CORRECT ANSWER B A unary o...

DBI202 1400 Questions and Answers 2024 In relational data model, an attribute is a column ** Answ** False A data model is a notation for describing data or information. And the description generally consist of: ** Answ** 3 parts * DBMS stands for what? ** Answ** Database Management System * Look at this line: MOVIES (Id, Name, Description) What the above represent? ** Answ** A schema Look at the following data for table

AGILE DBI202 - FA20 (QUIZ 1, 2, 4, 5) NEW QUESTIONS AND ANSWERS LATEST UPDATE 2023 A+ FULL SOLUTION Of the various database models, the _______ model is the most prevalent today Each column in a relation is called _______. Select one: Each row in a relation is called _______. Select one: A unary operator is applied to _______ relation(s) and creates an output of ________ relation(s). Select one: A binary operator is applied to _______ relations (s) and creates an output of ...

DBI202 (Full) Question and Answers 2024 | Exam Review

DBI202 Exam Practice Questions and Answers Which of following feature is NOT responsibility of Database Management System? A. Allow users to create new databases and specify their schemas B. Give users the ability to query the data C. Support the storage of very large amounts of data D. Manage user accounts of computer on which DBMS is running - Answer-d Which of following statement is correct? A. Every relation must have only one primary key B. Primary key has only one attribute C. Tw...

DBI202 Exam Practice Questions and Answers Updated 2024 Which of the following statement is belong to DML? Select one: a. CREATE b. INSERT c. GRANT d. ALTER - Answer-b Suppose a relation R(A,B) and S(B,C) are bags. R has 2 tuples (1,3), (2,4) and S has 3 tuples (1,2), (1,2) and (4,5). The theta join R ⋈ R.B>S.B S has __________ tuples Select one: a. 2 b. 3 c. 6 d. 4 - Answer-d Choose a right statement about high level design. EMILLECT 2024/2025 ACADEMIC YEAR ©2024 EMILLECT....

DBI202 Exam Questions and Answers Updated 2024 A CASE SQL statement is which of the following? Select one: A way to establish a loop in SQL A way to establish a data definition in SQL All of the above A way to establish an IF-THEN-ELSE in SQL - Answer-A way to establish an IF-THEN-ELSE in SQL A domain of PaymentMethod attributes in Invoice relation have 2 types: Cash, Transfer. Which statement is used to validate the data entries? Select one: ...CHECK PaymentMethod = ('Cash',...

dbi202 Exam Study Guide with Complete Solutions DBMS is a collection of .............. that enables user to create and maintain a database. - Answer-Program In a relational schema, each tuple is divided into fields called - Answer-Domains In an ER model, ................ is described in the database by storing its data. - Answer-Entity DFD stands for - Answer-Data Flow Diagram A top-to-bottom relationship among the items in a database is established by a - Answer- Hierarchical schema .....