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CBSE Class 12 Informatics Practices — Chapter Summary

CBSE Class 12 Informatics Practices chapter summary, chapter by chapter across 7 chapters. Follows the CBSE syllabus.

How to Use Chapter Summaries

  1. Read before the full chapter — know what to expect before studying in detail.
  2. Use for revision — a quick pass before tests.
  3. Spot weak areas — a point that feels unclear tells you what to re-read.

Chapter Summaries — 7 Chapters

1

Querying and SQL Functions

SQL functions help retrieve, transform, group, and combine data stored in tables. The chapter covers single row functions, aggregate functions, grouping with GROUP BY and HAVING, and operations on relations such as UNION, INTERSECT, MINUS, and Cartesian Product. It also shows how queries can work wi

Single row functions work on onePOWER(XString functions work on character dataNOW() returns the current system dateAggregate functions are also called multiple
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2

Data Handling using Pandas - I

Pandas is a high-level Python library for data manipulation and analysis. It is built on NumPy and Matplotlib and is used for handling tabular data in an organised and efficient way. The chapter introduces the basic ideas of data structures, Series, DataFrame, CSV file handling, and the main differe

Python libraries are collections of builtNumPy stands for Numerical PythonPandas stands for PANelDataA data structure is a collectionA Series is a one
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3

Data Handling using Pandas - II

Pandas provides powerful tools for analysing tabular data in a DataFrame. The chapter focuses on descriptive statistics, data aggregation, sorting, grouping, index handling, reshaping with pivot and pivot_table, handling missing values, and importing or exporting data between Pandas and MySQL. A cla

Descriptive statistics are used to summariseAggregation means to transform the datasetSorting arranges data elements inGroup by splits data into groupsA DataFrame normally gets a numeric
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Frequently Asked Questions

Where can I find CBSE Class 12 Informatics Practices Chapter Summary?

This page has chapter summary for 7 chapters of CBSE Class 12 Informatics Practices for the board exams 2027. Each chapter links to its own page with the full set.

Go through the syllabus first, then work chapter by chapter: learn the ideas, practise questions, and revise with notes and flashcards. Leave time at the end to revise every chapter once more under timed conditions.

Browse Chapter Summary by Chapter

7 chapters

1

Querying and SQL Functions

2

Data Handling using Pandas - I

3

Data Handling using Pandas - II

4

Plotting Data using Matplotlib

5

Internet and Web

6

Societal Impacts

7

Project Based Learning

More Informatics Practices Resources

CBSE Class 12

Practice Quiz

Test yourself with quick quizzes

Important Questions

Exam-style questions with answers

Revision Notes

Key concepts and quick revision points

Formula Sheet

The formulas of each chapter in one place

Concept Maps

Diagrams showing how topics connect

Study Plan

Week-by-week preparation schedule

Flashcards

Quick-fire cards for active recall practice

Syllabus

Chapter list and the topics in each

NCERT Solutions

Every textbook exercise solved step by step

Other CBSE Class 12 Subjects

PhysicsChemistryMathematicsBiologyEnglishComputer ScienceAccountancyBusiness Studies