Q21)What is 3NF in the DBMS stand for? The Third Normal Form, or 3NF. Any table that meets the following two requirements is said to have in the 3NF: A table is in the 2NF. It is argued that every non-prime attribute in a table is non-transitively reliant on every table key. Q2...
Chapterwise Multiple Choice Questions on DBMS Our 1000+ MCQs focus on all topics of the DBMS subject, covering 100+ topics. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. You can practice these MCQs chapter by chapter sta...
This method of decomposition focuses on lossless decomposition while preserving dependencies.Discuss this Question 2. You should test the Boyce-Codd Normal Form of the relationship before applying the ___ decomposition algorithm.3NF BCNF 4NF 2NFAnswer: B) BCNF...
Most modern database management systems like MySQL, Microsoft SQL Server, Oracle, IBM DB2, and Amazon Redshift are based on RDBMS.25. What is DBMS? DBMS stands for Database Management System. DBMS is a system software responsible for the creation, retrieval, updation, and management of the ...
Q3. A table is in which normal form if only candidate keys are the determinants. (A) 1NF (B) 2NF (C) 3NF (D) BCNF Q4. The subset of super key is a candidate key under what condition? (A) All subsets are super keys (B) No proper subset is a super key ...
23. What is Normalization in database and how do you achieve it? Normalization is the process of minimizing data redundancy by reorganizing database schema. Normalization is achieved through various normal forms like 1NF, 2NF, 3NF and so on. Generally database is normalized till 3NF for transac...
Meeting all requirements of the first normal form. Placing the subsets of data in separate tables and Creation of relationships between the tables using primary keys. Third Normal Form (3NF):. This should meet all requirements of 2NF. Removing the columns which are not dependent on primary key...
Advanced SQL queries and functions MCQs in DBMS Database Design MCQs in DBMS Entity-Relationship (ER) modeling MCQs in DBMS Extended ER modeling MCQs in DBMS Normalization and normal forms (1NF, 2NF, 3NF, BCNF) MCQs in DBMS Denormalization MCQs in DBMS ...
2NF (Second Normal Form): In addition to 1NF, all non-key attributes are fully dependent on the primary key. It helps to eliminate redundant data. 3NF (Third Normal Form): In addition to2NF, there are no transitive functional dependencies. In3NF, values in a record that are not part ...
–What is a UNION, and how is it used in SQL?–How do you delete data from a table using SQL? Q4. What are the most important DBMS topics for interview? The most important DBMS topics for an interview will depend on the specific job and the company’s requirements. However, here ...