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CBSE Class 12 Informatics Practices — Revision Notes

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

How to Revise Effectively

  • Active recall: cover the notes, try to recall the key points, then check.
  • Spaced repetition: revise each chapter again after a day, then after a few days, then after a week or two.
  • Write, don't just read: writing key points and formulas out by hand helps them stick.
  • Teach someone: explaining an idea to a friend is a good test of whether you understand it.

Chapter-Wise Revision Notes — 7 Chapters

1

Querying and SQL Functions

4 topics
  • 1. SQL Functions
  • 2. String and Date Functions
  • 3. Aggregate Functions and GROUP BY
  • 4. Operations on Relations
Single row functions work on onePOWER(XString functions work on character dataNOW() returns the current system dateAggregate functions are also called multiple
Read the Querying and SQL Functions notes
2

Data Handling using Pandas - I

4 topics
  • Python Libraries and Pandas Basics
  • Series: Creation, Indexing, Slicing, Attributes and Methods
  • Series Mathematical Operations and Alignment
  • DataFrame: Creation and Structure
Python libraries are collections of builtNumPy stands for Numerical PythonPandas stands for PANelDataA data structure is a collectionA Series is a one
Read the Data Handling using Pandas - I notes
3

Data Handling using Pandas - II

4 topics
  • 1. Descriptive Statistics
  • 2. Data Aggregations
  • 3. Sorting a DataFrame
  • 4. GROUP BY Functions
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
Read the Data Handling using Pandas - II notes

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Revision notes with diagrams and examples for all 7 chapters in Super Tutor.

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Frequently Asked Questions

Where can I find CBSE Class 12 Informatics Practices Revision Notes?

This page has revision notes 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 Revision Notes 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

Formula Sheet

The formulas of each chapter in one place

Chapter Summary

Understand each chapter at a glance

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