The Only SQL Cheatsheet Youโll Ever Need - 2025 Edition
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Roadmap to become a Programmer:
๐ Learn Programming Fundamentals (Logic, Syntax, Flow)
โ๐ Choose a Language (Python / Java / C++)
โ๐ Learn Data Structures & Algorithms
โ๐ Learn Problem Solving (LeetCode / HackerRank)
โ๐ Learn OOPs & Design Patterns
โ๐ Learn Version Control (Git & GitHub)
โ๐ Learn Debugging & Testing
โ๐ Work on Real-World Projects
โ๐ Contribute to Open Source
โโ Apply for Job / Internship
React โค๏ธ for More ๐ก
๐ Learn Programming Fundamentals (Logic, Syntax, Flow)
โ๐ Choose a Language (Python / Java / C++)
โ๐ Learn Data Structures & Algorithms
โ๐ Learn Problem Solving (LeetCode / HackerRank)
โ๐ Learn OOPs & Design Patterns
โ๐ Learn Version Control (Git & GitHub)
โ๐ Learn Debugging & Testing
โ๐ Work on Real-World Projects
โ๐ Contribute to Open Source
โโ Apply for Job / Internship
React โค๏ธ for More ๐ก
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When to Use Which Programming Language?
C โ OS Development, Embedded Systems, Game Engines
C++ โ Game Dev, High-Performance Apps, Finance
Java โ Enterprise Apps, Android, Backend
C# โ Unity Games, Windows Apps
Python โ AI/ML, Data, Automation, Web Dev
JavaScript โ Frontend, Full-Stack, Web Games
Golang โ Cloud Services, APIs, Networking
Swift โ iOS/macOS Apps
Kotlin โ Android, Backend
PHP โ Web Dev (WordPress, Laravel)
Ruby โ Web Dev (Rails), Prototypes
Rust โ System Apps, Blockchain, HPC
Lua โ Game Scripting (Roblox, WoW)
R โ Stats, Data Science, Bioinformatics
SQL โ Data Analysis, DB Management
TypeScript โ Scalable Web Apps
Node.js โ Backend, Real-Time Apps
React โ Modern Web UIs
Vue โ Lightweight SPAs
Django โ AI/ML Backend, Web Dev
Laravel โ Full-Stack PHP
Blazor โ Web with .NET
Spring Boot โ Microservices, Java Enterprise
Ruby on Rails โ MVPs, Startups
HTML/CSS โ UI/UX, Web Design
Git โ Version Control
Linux โ Server, Security, DevOps
DevOps โ Infra Automation, CI/CD
CI/CD โ Testing + Deployment
Docker โ Containerization
Kubernetes โ Cloud Orchestration
Microservices โ Scalable Backends
Selenium โ Web Testing
Playwright โ Modern Web Automation
Credits: https://whatsapp.com/channel/0029VahiFZQ4o7qN54LTzB17
ENJOY LEARNING ๐๐
C โ OS Development, Embedded Systems, Game Engines
C++ โ Game Dev, High-Performance Apps, Finance
Java โ Enterprise Apps, Android, Backend
C# โ Unity Games, Windows Apps
Python โ AI/ML, Data, Automation, Web Dev
JavaScript โ Frontend, Full-Stack, Web Games
Golang โ Cloud Services, APIs, Networking
Swift โ iOS/macOS Apps
Kotlin โ Android, Backend
PHP โ Web Dev (WordPress, Laravel)
Ruby โ Web Dev (Rails), Prototypes
Rust โ System Apps, Blockchain, HPC
Lua โ Game Scripting (Roblox, WoW)
R โ Stats, Data Science, Bioinformatics
SQL โ Data Analysis, DB Management
TypeScript โ Scalable Web Apps
Node.js โ Backend, Real-Time Apps
React โ Modern Web UIs
Vue โ Lightweight SPAs
Django โ AI/ML Backend, Web Dev
Laravel โ Full-Stack PHP
Blazor โ Web with .NET
Spring Boot โ Microservices, Java Enterprise
Ruby on Rails โ MVPs, Startups
HTML/CSS โ UI/UX, Web Design
Git โ Version Control
Linux โ Server, Security, DevOps
DevOps โ Infra Automation, CI/CD
CI/CD โ Testing + Deployment
Docker โ Containerization
Kubernetes โ Cloud Orchestration
Microservices โ Scalable Backends
Selenium โ Web Testing
Playwright โ Modern Web Automation
Credits: https://whatsapp.com/channel/0029VahiFZQ4o7qN54LTzB17
ENJOY LEARNING ๐๐
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๐ฐ C++ Roadmap for Beginners 2025
โโโ ๐ง Introduction to C++ & How It Works
โโโ ๐งฐ Setting Up Environment (IDE, Compiler)
โโโ ๐ Basic Syntax & Structure
โโโ ๐ข Variables, Data Types & Constants
โโโ โ Operators (Arithmetic, Relational, Logical, Bitwise)
โโโ ๐ Flow Control (if, else, switch)
โโโ ๐ Loops (for, while, do...while)
โโโ ๐งฉ Functions (Declaration, Definition, Recursion)
โโโ ๐ฆ Arrays, Strings & Vectors
โโโ ๐งฑ Pointers & References
โโโ ๐งฎ Dynamic Memory Allocation (new, delete)
โโโ ๐ Structures & Unions
โโโ ๐ Object-Oriented Programming (Classes, Objects, Inheritance, Polymorphism)
โโโ ๐ File Handling in C++
โโโ โ ๏ธ Exception Handling
โโโ ๐ง STL (Standard Template Library - vector, map, set, etc.)
โโโ ๐งช Mini Projects (Bank System, Student Record, etc.)
Like for the detailed explanation โค๏ธ
#c #programming
โโโ ๐ง Introduction to C++ & How It Works
โโโ ๐งฐ Setting Up Environment (IDE, Compiler)
โโโ ๐ Basic Syntax & Structure
โโโ ๐ข Variables, Data Types & Constants
โโโ โ Operators (Arithmetic, Relational, Logical, Bitwise)
โโโ ๐ Flow Control (if, else, switch)
โโโ ๐ Loops (for, while, do...while)
โโโ ๐งฉ Functions (Declaration, Definition, Recursion)
โโโ ๐ฆ Arrays, Strings & Vectors
โโโ ๐งฑ Pointers & References
โโโ ๐งฎ Dynamic Memory Allocation (new, delete)
โโโ ๐ Structures & Unions
โโโ ๐ Object-Oriented Programming (Classes, Objects, Inheritance, Polymorphism)
โโโ ๐ File Handling in C++
โโโ โ ๏ธ Exception Handling
โโโ ๐ง STL (Standard Template Library - vector, map, set, etc.)
โโโ ๐งช Mini Projects (Bank System, Student Record, etc.)
Like for the detailed explanation โค๏ธ
#c #programming
โค5
SQL Interview Questions
1. How would you find duplicate records in SQL?
2.What are various types of SQL joins?
3.What is a trigger in SQL?
4.What are different DDL,DML commands in SQL?
5.What is difference between Delete, Drop and Truncate?
6.What is difference between Union and Union all?
7.Which command give Unique values?
8. What is the difference between Where and Having Clause?
9.Give the execution of keywords in SQL?
10. What is difference between IN and BETWEEN Operator?
11. What is primary and Foreign key?
12. What is an aggregate Functions?
13. What is the difference between Rank and Dense Rank?
14. List the ACID Properties and explain what they are?
15. What is the difference between % and _ in like operator?
16. What does CTE stands for?
17. What is database?what is DBMS?What is RDMS?
18.What is Alias in SQL?
19. What is Normalisation?Describe various form?
20. How do you sort the results of a query?
21. Explain the types of Window functions?
22. What is limit and offset?
23. What is candidate key?
24. Describe various types of Alter command?
25. What is Cartesian product?
Like this post if you need more content like this โค๏ธ
1. How would you find duplicate records in SQL?
2.What are various types of SQL joins?
3.What is a trigger in SQL?
4.What are different DDL,DML commands in SQL?
5.What is difference between Delete, Drop and Truncate?
6.What is difference between Union and Union all?
7.Which command give Unique values?
8. What is the difference between Where and Having Clause?
9.Give the execution of keywords in SQL?
10. What is difference between IN and BETWEEN Operator?
11. What is primary and Foreign key?
12. What is an aggregate Functions?
13. What is the difference between Rank and Dense Rank?
14. List the ACID Properties and explain what they are?
15. What is the difference between % and _ in like operator?
16. What does CTE stands for?
17. What is database?what is DBMS?What is RDMS?
18.What is Alias in SQL?
19. What is Normalisation?Describe various form?
20. How do you sort the results of a query?
21. Explain the types of Window functions?
22. What is limit and offset?
23. What is candidate key?
24. Describe various types of Alter command?
25. What is Cartesian product?
Like this post if you need more content like this โค๏ธ
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List Comprehension in Python
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Best Programming Languages for Hacking:
1. Python
Itโs no surprise that Python tops our list. Referred to as the defacto hacking programing language, Python has indeed played a significant role in the writing of hacking scripts, exploits, and malicious programs.
2. C
C is critical language in the Hacking community. Most of the popular operating systems we have today run on a foundation of C language.
C is an excellent resource in reverse engineering of software and applications. These enable hackers to understand the working of a system or an app.
3. Javascript
For quite some time, Javascript(JS) was a client-side scripting language. With the release of Node.js, Javascript now supports backend development. To hackers, this means a broader field of exploitation.
4. PHP
For a long time now, PHP has dominated the backend of most websites and web applications.
If you are into web hacking, then getting your hands on PHP would be of great advantage.
5. C++
Have you ever thought of cracking corporate(paid) software? Here is your answer. The hacker community has significantly implemented C++ programming language to remove trial periods on paid software and even the operating system.
6. SQL
SQL โ Standard Query Language. It is a programming language used to organize, add, retrieve, remove, or edit data in a database. A lot of systems store their data in databases such as MySQL, MS SQL, and PostgreSQL.
Using SQL, hackers can perform an attack known as SQL injection, which will enable them to access confidential information.
7. Java
Despite what many may say, a lot of backdoor exploits in systems are written in Java. It has also been used by hackers to perform identity thefts, create botnets, and even perform malicious activities on the client system undetected.
1. Python
Itโs no surprise that Python tops our list. Referred to as the defacto hacking programing language, Python has indeed played a significant role in the writing of hacking scripts, exploits, and malicious programs.
2. C
C is critical language in the Hacking community. Most of the popular operating systems we have today run on a foundation of C language.
C is an excellent resource in reverse engineering of software and applications. These enable hackers to understand the working of a system or an app.
3. Javascript
For quite some time, Javascript(JS) was a client-side scripting language. With the release of Node.js, Javascript now supports backend development. To hackers, this means a broader field of exploitation.
4. PHP
For a long time now, PHP has dominated the backend of most websites and web applications.
If you are into web hacking, then getting your hands on PHP would be of great advantage.
5. C++
Have you ever thought of cracking corporate(paid) software? Here is your answer. The hacker community has significantly implemented C++ programming language to remove trial periods on paid software and even the operating system.
6. SQL
SQL โ Standard Query Language. It is a programming language used to organize, add, retrieve, remove, or edit data in a database. A lot of systems store their data in databases such as MySQL, MS SQL, and PostgreSQL.
Using SQL, hackers can perform an attack known as SQL injection, which will enable them to access confidential information.
7. Java
Despite what many may say, a lot of backdoor exploits in systems are written in Java. It has also been used by hackers to perform identity thefts, create botnets, and even perform malicious activities on the client system undetected.
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How Coders Can Surviveโand Thriveโin a ChatGPT World
Artificial intelligence, particularly generative AI powered by large language models (LLMs), could upend many codersโ livelihoods. But some experts argue that AI wonโt replace human programmersโnot immediately, at least.
โYou will have to worry about people who are using AI replacing you,โ says Tanishq Mathew Abraham, a recent Ph.D. in biomedical engineering at the University of California, Davis and the CEO of medical AI research center MedARC.
Here are some tips and techniques for coders to survive and thrive in a generative AI world.
Stick to Basics and Best Practices
While the myriad AI-based coding assistants could help with code completion and code generation, the fundamentals of programming remain: the ability to read and reason about your own and othersโ code, and understanding how the code you write fits into a larger system.
Find the Tool That Fits Your Needs
Finding the right AI-based tool is essential. Each tool has its own ways to interact with it, and there are different ways to incorporate each tool into your development workflowโwhether thatโs automating the creation of unit tests, generating test data, or writing documentation.
Clear and Precise Conversations Are Crucial
When using AI coding assistants, be detailed about what you need and view it as an iterative process. Abraham proposes writing a comment that explains the code you want so the assistant can generate relevant suggestions that meet your requirements.
Be Critical and Understand the Risks
Software engineers should be critical of the outputs of large language models, as they tend to hallucinate and produce inaccurate or incorrect code. โItโs easy to get stuck in a debugging rabbit hole when blindly using AI-generated code, and subtle bugs can be difficult to spot,โ Vaithilingam says.
Artificial intelligence, particularly generative AI powered by large language models (LLMs), could upend many codersโ livelihoods. But some experts argue that AI wonโt replace human programmersโnot immediately, at least.
โYou will have to worry about people who are using AI replacing you,โ says Tanishq Mathew Abraham, a recent Ph.D. in biomedical engineering at the University of California, Davis and the CEO of medical AI research center MedARC.
Here are some tips and techniques for coders to survive and thrive in a generative AI world.
Stick to Basics and Best Practices
While the myriad AI-based coding assistants could help with code completion and code generation, the fundamentals of programming remain: the ability to read and reason about your own and othersโ code, and understanding how the code you write fits into a larger system.
Find the Tool That Fits Your Needs
Finding the right AI-based tool is essential. Each tool has its own ways to interact with it, and there are different ways to incorporate each tool into your development workflowโwhether thatโs automating the creation of unit tests, generating test data, or writing documentation.
Clear and Precise Conversations Are Crucial
When using AI coding assistants, be detailed about what you need and view it as an iterative process. Abraham proposes writing a comment that explains the code you want so the assistant can generate relevant suggestions that meet your requirements.
Be Critical and Understand the Risks
Software engineers should be critical of the outputs of large language models, as they tend to hallucinate and produce inaccurate or incorrect code. โItโs easy to get stuck in a debugging rabbit hole when blindly using AI-generated code, and subtle bugs can be difficult to spot,โ Vaithilingam says.
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You will not learn system design in a month.
You will not master DSA in a month.
You will not suddenly understand how to solve problems at scale in a month.
You wonโt grasp scalability, databases, and caching overnight.
And you most definitely wonโt internalize every distributed system pattern just by reading a few blogs.
Because software engineering is an ocean: deep, vast, and ever-expanding.
And you canโt cross an ocean in a single leap.
In a month, youโll realize youโre only scratching the surface.
Youโll see more gaps than answers.
Youโll feel like thereโs too much to learn and too little time.
But thatโs where most people give up.
Thatโs where frustration makes them quit.
Donโt be one of them.
Take it one step at a time.
Real expertise doesnโt come from rushing. It comes from consistent, deliberate learning over years.
It comes from revisiting the same concepts and seeing them from new perspectives each time.
So trust your own pace.
Stay in the game long enough to connect the dots.
And one day, the same concepts that once seemed impossible will feel like second nature.
Just keep collecting buckets.
You will not master DSA in a month.
You will not suddenly understand how to solve problems at scale in a month.
You wonโt grasp scalability, databases, and caching overnight.
And you most definitely wonโt internalize every distributed system pattern just by reading a few blogs.
Because software engineering is an ocean: deep, vast, and ever-expanding.
And you canโt cross an ocean in a single leap.
In a month, youโll realize youโre only scratching the surface.
Youโll see more gaps than answers.
Youโll feel like thereโs too much to learn and too little time.
But thatโs where most people give up.
Thatโs where frustration makes them quit.
Donโt be one of them.
Take it one step at a time.
Real expertise doesnโt come from rushing. It comes from consistent, deliberate learning over years.
It comes from revisiting the same concepts and seeing them from new perspectives each time.
So trust your own pace.
Stay in the game long enough to connect the dots.
And one day, the same concepts that once seemed impossible will feel like second nature.
Just keep collecting buckets.
โค11