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Unacademy GATE, ESE & IRMS

Videos & Materials

Roadmap

Introduction

Introduction of ER-Model, Entity & Attributes

Relationships

Representation of ER-Model Components

Extended-ER Modeling

Terminology of Relational Model

Relational Model Constraints and Keys

Super Keys Example

Existence Dependencies

Conversion of ER-Model to Relational Model (Part 1)

Conversion of ER-Model to Relational Model (Part 2)

Workbook Question 1-10

Workbook Question 11-24

Introduction of Normalization & Functional Dependency

Uses of FD's

Equivalence Set of FD's

Additional FD's and Minimal Cover

Basics of Normalization

INF and 2NF

3NF

BCNF

4NF and 5NF

Workbook Question 1-10

Workbook Question 11-20

Workbook Question 21-30

Workbook Question 31-40

Workbook Question 41-50

Workbook Question 51-64

Workbook Question 32, 47, 49

Introduction of Transaction

Problems in Concurrent Execution

Schedule

Serial, Complete, Recoverable, Cascadeless and Strict Schedules

Serializable Schedule

Conflict Equivalent Schedules

Conflict Serializable Schedules

View Serializability

Concurrency Protocol (Part 1)

Concurrency Protocol (Part 2)

Concurrency Protocol (Part 3)

Concurrency Protocol (Part 4)

Log based Recovery

Workbook Question 1-10

Workbook Question 11-20

Workbook Question 21-30

Workbook Question 31-41

Workbook Question 4, 13

Introduction of File Organization

Types of File Organization

Introduction of Index

Primary Index

Clustered Index

Secondary Index

Multilevel Index

Introduction of B-Tree

Insertion in B-Tree

Deletion in B-Tree

Introduction of B+-Tree

Insertion of B+-Tree

Insertion of B+-Tree Example

Deletion In B+-Tree

Workbook Question 1-10

Workbook Question 11-20

Workbook Question 21-30

Workbook Question 31-41

Relational Algebra (Part 1)

Relational Algebra (Part 2)

Relational Algebra (Part 3)

Relational Algebra (Part 4)

Relational Algebra (Part 5)

Relational Algebra (Part 6)

Relational Algebra (Part 7)

Relational Algebra (Part 8)

Relational Algebra (Part 9)

Tuple Relational Calculus (Part 1)

Tuple Relational Calculus (Part 2)

Domain Relational Calculus

Workbook Question 1-2

Workbook Question 3-11

Workbook Question 12-16

Workbook Question 17-24

Workbook Question 25-30

Workbook Question 31-39

SQL (Part 1)

SQL (Part 2)

SQL (Part 3)

SQL (Part 4)

SQL (Part 5)

SQL (Part 6)

SQL (Part 7)

SQL (Part 8)

SQL (Part 9)

Workbook Question 1-10

Workbook Question 11-19

Workbook Question 20-30

Workbook Question 31-40

Workbook Question 41-45

Number of 0's at the end

Unit Digit Value

Last Two Digits

Concept of Remainders

Factorisation

Divisibility Rules

Important Note

Addition, Multiplication & Filling -1

Addition, Multiplication & Filling (Part 2)

Addition, Multiplication & Filling (Part 3)

Basics of PnC

Letters-Word Arrangement

Team Formation

Question Paperwala Question

Number Sum

Linear and Circular Arrangements

Straight Lines, Triangles, Chess Board, Handshake

Dictionary Word & Important Concepts PnC

Concept Builder 1 (Probability)

Concept Builder 2 (Probability)

Challenge Question (Probability )

Average Speed

Time Difference

Relative Speed

Challenge Questions

Boats

Linear Races

Circular Races & HCF-LCM

Work & Time

Understanding Workdone

Distribution of Wages

Pipes & Cisterns

W=DMTE

Percentage DI (Graphs) (Part 1)

Percentage DI (Graphs) (Part 2)

Percentage DI (Graphs) (Part 3)

Percentage Basic (Part 1)

Percentage Basic (Part 2)

Profit & Loss (Part 1)

Profit & Loss (Part 2)

Mixture Alligation

SICI & Some more Graphs

Logarithms

Odd One Out, Coding, Decoding, Missing Letter & Blood Relations

Simplification, More Graphs & Reasoning (Part-1)

Simplification, Some More Graphs & Reasoning (Part 2)

Logical Connective

Syllogism

Verbal Reasoning (Critical Reasoning) (Part 1)

Verbal Reasoning (Critical Reasoning) (Part 2)

Verbal Reasoning (Critical Reasoning) (Part 3)

Verbal Reasoning (Critical Reasoning) (Part 4)

Verbal Reasoning (Critical Reasoning) (Part 5)

Verbal Ability and Verbal Grammar (VA VG) (Part 1)

Verbal Ability and Verbal Grammar (VA VG) (Part 2)

Verbal Ability and Verbal Grammar (VA VG) (Part 3)

Verbal Ability and Verbal Grammar (VA VG) (Part 4)

Verbal Ability & Verbal Grammar (VA VG) - Part 5

Spatial Aptitude

CDEN-C01L01Introduction to Compiler and Phases (Part 1)

Introduction to Compiler and Phases (Part 2)

Introduction to Compiler and Phases (Part 3)

Lexical Analysis

FIRST and FOLLOW (Part 1)

FIRST and FOLLOW (Part 2)

FIRST and FOLLOW (Part 3)

CDEN-C01L08Syntax Analysis and Parse Tree (Part 1)

Syntax Analysis and Parse Tree (Part 2)

Syntax Analysis and Parse Tree (Part 3))

Syntax Analysis and Parse Tree (Part 4)

Ambiguous and Unambiguous Grammar (Part 1)

Ambiguous and Unambiguous Grammar (Part 2)

Left Recursion and Left Factoring (Part 1)

Left Recursion and Left Factoring (Part 2)

LL(1) Parser (Part 1)

LL(1) Parser (Part 2)

LL(1) Parser (Part 3)

Grammar is LL(1) or Not (Part 1)

Grammar is LL(1) or Not (Part 2)

Shift Reduce Parser (Part 1)

Shift Reduce Parser (Part 2)

Shift Reduce Parser (Part 3)

Shift Reduce Parser (Part 4)

Shift Reduce Parser (Part 5)

Canonical Collection of LR(0) Items (Part 1)

Canonical Collection of LR(0) Items (Part 2)

Canonical Collection of LR(0) Items (Part 3)

Construction of LR(0) Parsing Table (Part 1)

Construction of LR(0) Parsing Table (Part 2)

Construction of LR(0) Parsing Table (Part 3)

Construction of SLR(1) Parsing Table (Part 1)

Construction of SLR(1) Parsing Table (Part 2)

Canonical Collection of LR(1) Items (Part 1)

Canonical Collection of LR(1) Items (Part 2)

Construction of CLR(1) and LALR(1) (Part 1)

Construction of CLR(1) and LALR(1) (Part 2)

Construction of CLR(1) and LALR(1) (Part 3)

Practice Questions of Parsers (Part 1)

Practice Questions of Parsers (Part 2)

Semantic Analysis Phase (Part 1)

Semantic Analysis Phase (Part 2)

Semantic Analysis Phase (Part 3)

Semantic Analysis Phase (Part 4)

Semantic Analysis Phase (Part 5)

Intermediate Code Generation (Part 1)

Intermediate Code Generation (Part 2)

Intermediate Code Generation (Part 3)

Intermediate Code Generation (Part 4)

Intermediate Code Generation (Part 5)

Code Optimization and Code Generation (Part 1)

Code Optimization and Code Generation (Part 2)

Code Optimization and Code Generation (Part 3)

Code Optimization and Code Generation (Part 4)

Code Optimization and Code Generation (Part 5)

Code Optimization and Code Generation (Part 6)

Syllabus and Road Map of Algorithm

Introduction of an Algorithm

ALGA-ENG-C01L03 Asymptotic Notation (Part 1)

Asymptotic Notation (Part 2)

Growth Rate Calculation

Properties of Asymptotic Notation

Properties of Asymptotic Notation

Practice Questions of Asymptotic Notations (Part 2)

Space and Time Complexity of an Algorithm

How to Calculate Complexity of an Algorithm (Part 1)

How to Calculate Complexity of an Algorithm (Part 2)

How to Calculate Complexity of an Algorithm (Part 3)

How to Calculate Complexity of an Algorithm (Part 4)

How to Calculate Complexity of an Algorithm (Part 5)

How to Calculate Space Complexity of an Algorithm

Practice Questions of Time Complexity (Part 1)

Practice Questions of Time Complexity (Part 2)

(MSQ) Practice Questions of Time Complexity and Space Complexity

Workbook Questions 1-15

Workbook Questions 16-34

GATE 2021 & 2022 Questions

Divide and Conquer

Searching

Finding Maximum and Minimum of an Array

Straightforward Approach of Matrix Multiplication

Matrix Multiplication using Divide and Conquer Approach

Strassen's Matrix Multiplication

Bubble Sort

Selection Sort Algorithm

Insertion Sort Algorithm (Part 1)

Insertion Sort Algorithm (Part 2)

Quick Sort (Part 1)

Quick Sort (Part 2)

Merge Sort

Two Way Merge Sort Algorithm

Heap

Build Heap

Delete Heap

Heap Sort

Heap Sort Algorithm

Complexity of Different Operations on Heap

Radix Sort

Classification of Different Sorting Techniques

GATE Questions of Heap

Practice Questions Divide & Conquer Algorithm

Practice Questions Sorting Algorithm

WorkBook Questions 1-30

Self Practice Questions Divide and Conquer 1-17

Practice Questions of DAC & Sorting Techniques (MSQ)

Greedy Approach

Fractional Knapsack Problem

Job Sequencing With Deadline

Job Sequencing with Deadline Complexity Analysis

Optimal Merge Pattern

Optimal Merge Pattern Tree Complexity Analysis

Huffman Code

Minimum Cost Spanning Tree

Kruskal's Algorithm

Kruskal's Algorithm Complexity Analysis

Prim's Algorithm

Prim’s Algorithm Complexity Analysis

Boruvka's Algorithm

Boruvka's Algorithm Complexity

Single Source Shortest Path Algorithm

Single Source Shortest Path Algorithm Complexity Analysis

Practice Questions of Greedy Approach (MSQ)

Workbook Questions 1-10

Workbook Questions 11-20

Workbook Questions 21-32

Practice Questions

Dynamic Programming

Longest Common Subsequence

Matrix Chain Multiplications

Knapsack Problem

Multistage Graph Backward Approach

Multistage Graph Forward Approach

Optimal Binary Search Tree

Reliability Design

Bellman Ford Algorithm

All Pair Shortest Path Algorithm

Workbook Questions 1-7

Workbook Questions 9-15

Workbook Questions 16-19

Graph Traversal DFS Traversal

Graph Traversal, BFS Traversal

Topological Sorting (Topological Order)

Practice Makes Maths Perfect

Introduction to Linear Algebra

Types of Matrix according to its dimension (R,C)

Formation of Matrix with Elements Position (i,j)

Elementary Transformation of Matrix

Basic Operation of Matrix (Transpose)

Basic Operation of Matrix (Determinants)

Properties of Determinant

Matrix Multiplication

MATH-EN-C01L09 Adjoint

Workbook Questions 01-05

Workbook Questions 06-09

Workbook Questions 10-15

Types of Square Matrix Part 01

Types of Square Matrix Part 02

Types of Square Matrix Part 03

Concept of Characteristics Equation and Eigen Values

Important Examples of Eigen Values

Properties of Eigen Values

Concept of Cayley Hamilton's Theorem

Concept of Eigen Vectors

Concept of Diagonalization of Matrix

Workbook Questions 16-20

Workbook Questions 21-30

Workbook Questions 31-34

Concept of Rank of Matrix

Properties of Rank of Matrix

Workbook Questions 35-38

Solution of Linear Simultaneous Equations (Nonhomogeneous)

Solution of Linear Simultaneous Equations (Homogeneous Form)

Workbook Questions 39-42

Basis of Vector Space

Introduction to Integral Calculus

Definite Integral

Workbook Questions 1-8

Special Function for Single Integral (Gamma

Q Workbook Questions 9-14

Multiple Integrals (Double and Triple)

Workbook Questions 15-19

Concept of Maxima

Analysis of Maxima

Workbook Questions 1-5

Workbook Questions 6-10

Concept of Maxima

Workbook Questions 11-13

Basic of Calculus

Rolle's Mean Value Theorem

Basics of Limits (L Hospital Method)

Workbook Questions 1-5

Workbook Questions 6-13

Workbook Questions 1-8

Introduction to Probability & Statistics

Sample Space 2 (Dice)

Sample Space 3 (52 Playing Cards)

Concept of Events

Types of Events

Basics of Probability

Workbook Questions 1-5 EM

Workbook Questions 6-10

Workbook Questions 11-16

Probability of Distribution (Binomial Distribution)

Workbook Questions 17-20

Probability of Distribution (Poisson Distribution)

Probability of Distribution (Normal Distribution)

Workbook Questions 21-28

Concept of Random Variables

Properties of Expected Value and Variance

Workbook Questions 29-38

Workbook Questions 39-40

Important Point related with Statistics