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NCERT Textbook: Database Concepts
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FAQs on NCERT Textbook: Database Concepts
| 1. What are the basic components of a database? |  |
Ans. The basic components of a database include tables, records, fields, and relationships. Tables store data in rows and columns, where each row represents a record and each column represents a field. Relationships define how data in different tables is related to one another.
| 2. How does a relational database differ from a non-relational database? | |
Ans. A relational database organizes data into structured tables with predefined relationships, using SQL (Structured Query Language) for querying. In contrast, a non-relational database, often called NoSQL, stores data in various formats (like documents, key-value pairs, or graphs) and is more flexible, allowing for unstructured data storage and retrieval.
| 3. What is the purpose of a primary key in a database? | |
Ans. A primary key is a unique identifier for a record in a database table. It ensures that each record can be uniquely identified and helps maintain data integrity by preventing duplicate entries. The primary key can be a single field or a combination of multiple fields.
| 4. What role does normalization play in database design? | |
Ans. Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity. It involves dividing large tables into smaller, related tables and defining relationships between them. This helps to minimize data duplication and ensures that data is stored efficiently.
| 5. Why is data security important in database management? | |
Ans. Data security is crucial in database management to protect sensitive information from unauthorized access, breaches, and corruption. Implementing security measures like access controls, encryption, and regular backups helps ensure that data remains confidential, accurate, and available, thereby maintaining trust and compliance with regulations.
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Apr 12, 2026 Last updated
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Document Description: NCERT Textbook: Database Concepts for Humanities/Arts 2026 is part of Informatics Practices for Class 11 preparation. The notes and questions for NCERT Textbook: Database Concepts have been prepared according to the Humanities/Arts exam syllabus. Information about NCERT Textbook: Database Concepts covers topics like and NCERT Textbook: Database Concepts Example, for Humanities/Arts 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for NCERT Textbook: Database Concepts.
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NCERT Textbook: Database Concepts of Informatics Practices is the updated edition as per the latest syllabus of the 2026-27, PDF available for download.
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