For instance, if a relation called "R1" includes the characteristics "Y" and "Z," then the functional dependence between these two attributes may be represented as "Y->Z," indicating that Z is dependent on Y in order to operate. Q19)What is 1NF in the DBMS stand for? The First Norma...
Q9. Procedural code that is automatically executed in response to certain events on a particular table of view in a database: (A) Cursor (B) Transaction (C) Trigger (D) Stored Procedure Q10. DML is stands for (A) Data Manipulation Language (B) Data Maintaining Language (C) Discrete Mode...
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...
Inline: returns a table data type based on a single SELECT statement. Multi-statement: returns a tabular result-set but, unlike inline, multiple SELECT statements can be used inside the function body.9. What is a UNIQUE constraint? A UNIQUE constraint ensures that all values in a column are...
2NF or the second normal form: This normalization states that each and every non-key value of the column has to function according to the whole primary key. 3NF or the third normal form: This normalization depends on the main or the primary key without depending on the non-key supporting ...
Database Management System Architecture MCQs in DBMS Three-schema architecture (external, conceptual, internal) MCQs in DBMS Data independence MCQs in DBMS DBMS components and functions MCQs in DBMS Storage and File Structure MCQs in DBMS Data storage on physical media MCQs in DBMS ...
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...
2NF: Eliminate Redundant Data If an attribute depends on only part of a multi-valued key, remove it to a separate table. 3NF: Eliminate Columns Not Dependent On Key If attributes do not contribute to a description of the key, remove them to a separate table.All attributes must be directly...
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...
Relational database is a type of database in which data is stored and organized in form of relations (tables). It is based on relational model proposed by E.F Codd. 2. What is the difference between DBMS and RDBMS? Database Management System(DBMS) is the software used for efficient stor...