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Database Concepts

CBSE · Class 11 · Informatics Practices

Complete topic list for Database Concepts in CBSE Class 11 Informatics Practices. Key concepts, sub-topics, and what to focus on for board exams.

67 questions72 flashcards5 concepts

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4 Topics · CBSE Class 11 Informatics Practices

Topics in Database Concepts

1

1. From File System to Database

  • Manual record keeping becomes tedious when data volume increases.
  • A class of 50 students over 26 working days requires 1300 manual attendance entries per month.
  • File systems suffer from difficulty in access, data redundancy, data inconsistency, data isolation, data dependence, and controlled data sharing.
2

2. DBMS, Database Schema, Instance, and Meta-data

  • DBMS is software used to create and manage databases.
  • DBMS serves as an interface between users or application programs and the database.
  • Retrieving data through special commands is called querying the database.
3

3. Relational Data Model and Relation Properties

  • The relational data model is the most commonly used data model.
  • Other data models include object-oriented, entity-relationship, document, and hierarchical models.
  • In the relational model, tables are called relations.
4

4. Keys in a Relational Database

  • Keys are used to uniquely identify tuples and create relationships between relations.
  • Candidate key is any attribute that can uniquely identify tuples in a relation.
  • GUID and GPhone are candidate keys of GUARDIAN because both take unique values.

Key Concepts

Central concept: Database Concepts in Informatics Practices

File SystemDatabase Management SystemDatabase SchemaDatabase InstanceMeta-data or Data DictionaryQuery and Query LanguageData ManipulationRelational Data Model

Frequently Asked Questions

What are the important topics in Database Concepts for CBSE Class 11 Informatics Practices?
Database Concepts covers several key topics that are frequently asked in CBSE Class 11 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Database Concepts — CBSE Class 11 Informatics Practices?
Understand the core concepts first, then work through the 67 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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