Data Analytics & AI | SQL Interviews | Power BI Resources
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๐Ÿ”“Explore the fascinating world of Data Analytics & Artificial Intelligence

๐Ÿ’ป Best AI tools, free resources, and expert advice to land your dream tech job.

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โœจ 7 Must-Try Prompts for Claude 4.5

1๏ธโƒฃ Build a Mini App

Prompt: โ€œWrite a simple budgeting app in Python that lets me input expenses, categories, and shows a weekly summary.โ€

2๏ธโƒฃ Travel Planning with Multi-Step Reasoning

Prompt: โ€œPlan a 7-day European itinerary with train travel only, balancing cost, culture, and family-friendly activities.โ€

3๏ธโƒฃ Debugging Marathon

Prompt: โ€œHereโ€™s a broken code snippet [paste code]. Debug it, explain what was wrong, and suggest two alternative fixes.โ€

4๏ธโƒฃ Real-World Instructions

Prompt: โ€œExplain how to set up a home Wi-Fi mesh network with three routers, step by step, including diagrams in ASCII.โ€

5๏ธโƒฃ Creative Storytelling

Prompt: โ€œPretend youโ€™re a film director. Pitch me a 3-scene short film about humans teaching AI how to dance.โ€

6๏ธโƒฃ Math Under Pressure

Prompt: โ€œSolve this: A factory produces 120 widgets in 4 hours with 6 machines. How many machines are needed to produce 900 widgets in 10 hours?โ€

7๏ธโƒฃ Computer-Use Challenge

Prompt: โ€œAct as if youโ€™re navigating a desktop. Open a folder, create a file called draft.txt, add the line โ€˜Hello Claude 4.5โ€™ and show me the file tree.โ€
โค3
Complete Roadmap to learn Excel in 2025 ๐Ÿ‘‡๐Ÿ‘‡

1. Basic Excel Skills:
   - Familiarize yourself with Excel's interface and navigation.
   - Learn basic formulas (SUM, AVERAGE, COUNT, etc.).
   - Understand cell referencing (absolute vs. relative).

2. Data Entry and Formatting:
   - Practice entering and formatting data efficiently.
   - Explore cell formatting options for a clean and organized dataset.

3. Advanced Formulas:
   - Master more advanced formulas like VLOOKUP, HLOOKUP, INDEX-MATCH.
   - Learn logical functions (IF, AND, OR).
   - Understand array formulas for complex calculations.

4. Pivot Tables:
   - Gain proficiency in creating Pivot Tables for data summarization.
   - Learn to customize and format Pivot Tables effectively.

5. Data Cleaning:
   - Acquire skills in cleaning and transforming data.
   - Explore text-to-columns, remove duplicates, and data validation.

6. Charts and Graphs:
   - Learn to create various charts (bar, line, pie) for data visualization.
   - Understand chart formatting and customization.

7. Dashboard Creation:
   - Combine charts and tables to build basic dashboards.
   - Explore dynamic dashboards using Excel features.

8. Macros and VBA:
   - Dive into basic automation using Excel macros.
   - Learn Visual Basic for Applications (VBA) for more advanced automation.

9. Power Query:
   - Introduce yourself to Power Query for enhanced data manipulation.
   - Learn to import, transform, and load data efficiently.

10. Advanced Excel Techniques:
   - Explore advanced features like Goal Seek, Solver, and Scenario Manager.
   - Master the use of data tables for sensitivity analysis.

11. Real-world Projects:
   - Apply your skills to real-world projects or datasets.
   - Practice solving analytical problems using Excel.
Remember to practice consistently, as hands-on experience is crucial for mastering Excel. This roadmap will provide a solid foundation for your journey into data analysis using Excel.

5๏ธโƒฃ Free resources to practice Excel

https://www.w3schools.com/EXCEL/index.php

https://learn.microsoft.com/en-gb/training/paths/modern-analytics/

https://t.iss.one/excel_analyst/52

https://excel-practice-online.com/

Join for more: https://t.iss.one/free4unow_backup

ENJOY LEARNING ๐Ÿ‘๐Ÿ‘
โค7
You don't need to spend a single penny to learn AI Agents

AND... the best part is I got to learn from industry experts

DeepLearning AI has done a great job in making these courses

1. Multi AI Agent Systems with crewAI
- https://lnkd.in/dTudrD55

2. Practical Multi AI Agents
- https://lnkd.in/dQmTTWmK 
 
3. Serverless Agentic Workflows
- https://lnkd.in/dENcD795 
 
4. AI Agents in LangGraph
- https://lnkd.in/dJbGHaV2 
 
5. AI Agentic Design Patterns
- https://lnkd.in/dzDAA-J4

Like for more
โค1
Data Analytics isn't rocket science. It's just a different language.

Here's a beginner's guide to the world of data analytics:

1) Understand the fundamentals:
- Mathematics
- Statistics
- Technology

2) Learn the tools:
- SQL
- Python
- Excel (yes, it's still relevant!)

3) Understand the data:
- What do you want to measure?
- How are you measuring it?
- What metrics are important to you?

4) Data Visualization:
- A picture is worth a thousand words

5) Practice:
- There's no better way to learn than to do it yourself.

Data Analytics is a valuable skill that can help you make better decisions, understand your audience better, and ultimately grow your business.

It's never too late to start learning!
โค1
โœ…SQL Checklist for Data Analysts ๐Ÿ“€๐Ÿง 

1. SQL Basics
โฆ SELECT, WHERE, ORDER BY
โฆ DISTINCT, LIMIT, BETWEEN, IN
โฆ Aliasing (AS)

2. Filtering & Aggregation
โฆ GROUP BY & HAVING
โฆ COUNT(), SUM(), AVG(), MIN(), MAX()
โฆ NULL handling with COALESCE, IS NULL

3. Joins
โฆ INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN
โฆ Joining multiple tables
โฆ Self Joins

4. Subqueries & CTEs
โฆ Subqueries in SELECT, WHERE, FROM
โฆ WITH clause (Common Table Expressions)
โฆ Nested subqueries

5. Window Functions
โฆ ROW_NUMBER(), RANK(), DENSE_RANK()
โฆ LEAD(), LAG()
โฆ PARTITION BY & ORDER BY within OVER()

6. Data Manipulation
โฆ INSERT, UPDATE, DELETE
โฆ CREATE TABLE, ALTER TABLE
โฆ Constraints: PRIMARY KEY, FOREIGN KEY, NOT NULL

7. Optimization Techniques
โฆ Indexes
โฆ Query performance tips
โฆ EXPLAIN plans

8. Real-World Scenarios
โฆ Writing complex queries for reports
โฆ Customer, sales, and product data
โฆ Time-based analysis (e.g., monthly trends)

9. Tools & Practice Platforms
โฆ MySQL, PostgreSQL, SQL Server
โฆ DB Fiddle, Mode Analytics, LeetCode (SQL), StrataScratch

10. Portfolio & Projects
โฆ Showcase queries on GitHub
โฆ Analyze public datasets (e.g., ecommerce, finance)
โฆ Document business insights

SQL Resources: https://whatsapp.com/channel/0029VanC5rODzgT6TiTGoa1v

๐Ÿ’ก Double Tap โ™ฅ๏ธ For More
โค4
Being a Generalist Data Scientist won't get you hired.
Here is how you can specialize ๐Ÿ‘‡

Companies have specific problems that require certain skills to solve. If you do not know which path you want to follow. Start broad first, explore your options, then specialize.

To discover what you enjoy the most, try answering different questions for each DS role:


- ๐Œ๐š๐œ๐ก๐ข๐ง๐ž ๐‹๐ž๐š๐ซ๐ง๐ข๐ง๐  ๐„๐ง๐ ๐ข๐ง๐ž๐ž๐ซ
Qs:
โ€œHow should we monitor model performance in production?โ€

- ๐ƒ๐š๐ญ๐š ๐€๐ง๐š๐ฅ๐ฒ๐ฌ๐ญ / ๐๐ซ๐จ๐๐ฎ๐œ๐ญ ๐ƒ๐š๐ญ๐š ๐’๐œ๐ข๐ž๐ง๐ญ๐ข๐ฌ๐ญ
Qs:
โ€œHow can we visualize customer segmentation to highlight key demographics?โ€

- ๐ƒ๐š๐ญ๐š ๐’๐œ๐ข๐ž๐ง๐ญ๐ข๐ฌ๐ญ
Qs:
โ€œHow can we use clustering to identify new customer segments for targeted marketing?โ€

- ๐Œ๐š๐œ๐ก๐ข๐ง๐ž ๐‹๐ž๐š๐ซ๐ง๐ข๐ง๐  ๐‘๐ž๐ฌ๐ž๐š๐ซ๐œ๐ก๐ž๐ซ
Qs:
โ€œWhat novel architectures can we explore to improve model robustness?โ€

- ๐Œ๐‹๐Ž๐ฉ๐ฌ ๐„๐ง๐ ๐ข๐ง๐ž๐ž๐ซ
Qs:
โ€œHow can we automate the deployment of machine learning models to ensure continuous integration and delivery?โ€

Best Data Science & Machine Learning Resources: https://topmate.io/coding/914624

ENJOY LEARNING ๐Ÿ‘๐Ÿ‘
โค4
๐Ÿค– Artificial Intelligence Project Ideas โœ…

๐ŸŸข Beginner Level
โฆ Spam Email Classifier (train on labeled emails with Naive Bayesโ€”super practical for real apps!)
โฆ Handwritten Digit Recognition (MNIST) (classic CNN starter using TensorFlow)
โฆ Rock-Paper-Scissors AI Game (add random choices or simple ML to beat players)
โฆ Chatbot using Rule-Based Logic (pattern matching for basic Q&A)
โฆ AI Tic-Tac-Toe Game (minimax algorithm for unbeatable play)

๐ŸŸก Intermediate Level
โฆ Face Detection & Emotion Recognition (OpenCV + pre-trained models for facial analysis)
โฆ Voice Assistant with Speech Recognition (integrate SpeechRecognition lib for commands)
โฆ Language Translator (using NLP models) (Hugging Face transformers for quick translations)
โฆ AI-Powered Resume Screener (NLP to parse and score resumes)
โฆ Smart Virtual Keyboard (predictive typing) (build next-word prediction with basic RNNs)

๐Ÿ”ด Advanced Level
โฆ Self-Learning Game Agent (Reinforcement Learning) (Q-learning for games like CartPole)
โฆ AI Stock Trading Bot (time-series forecasting with LSTM)
โฆ Deepfake Video Generator (Ethical Use Only) (GANs like StyleGANโ€”handle responsibly)
โฆ Autonomous Car Simulation (OpenCV + RL) (pathfinding in virtual environments)
โฆ Medical Diagnosis using Deep Learning (X-ray/CT analysis) (CNNs on datasets like ChestX-ray)

๐Ÿ’ฌ Double Tap โค๏ธ for more! ๐Ÿ’ก๐Ÿง 
โค7
ChatGPT As Your Personal Assistant
โค4
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