Data Analytics & AI | SQL Interviews | Power BI Resources
25.2K subscribers
305 photos
2 videos
151 files
317 links
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.

Admin: @coderfun
Download Telegram
Complete Syllabus for Data Analytics interview:

SQL:
1. Basic   
- SELECT statements with WHERE, ORDER BY, GROUP BY, HAVING   
- Basic JOINS (INNER, LEFT, RIGHT, FULL)   
- Creating and using simple databases and tables

2. Intermediate   
- Aggregate functions (COUNT, SUM, AVG, MAX, MIN)   
- Subqueries and nested queries
- Common Table Expressions (WITH clause)   
- CASE statements for conditional logic in queries
3. Advanced   
- Advanced JOIN techniques (self-join, non-equi join)   
- Window functions (OVER, PARTITION BY, ROW_NUMBER, RANK, DENSE_RANK, lead, lag)   
- optimization with indexing   
- Data manipulation (INSERT, UPDATE, DELETE)

Python:
1. Basic   
- Syntax, variables, data types (integers, floats, strings, booleans)   
- Control structures (if-else, for and while loops)   
- Basic data structures (lists, dictionaries, sets, tuples)   
- Functions, lambda functions, error handling (try-except)   
- Modules and packages

2. Pandas & Numpy   
- Creating and manipulating DataFrames and Series   
- Indexing, selecting, and filtering data   
- Handling missing data (fillna, dropna)   
- Data aggregation with groupby, summarizing data   
- Merging, joining, and concatenating datasets

3. Basic Visualization   
- Basic plotting with Matplotlib (line plots, bar plots, histograms)   
- Visualization with Seaborn (scatter plots, box plots, pair plots)   
- Customizing plots (sizes, labels, legends, color palettes)   
- Introduction to interactive visualizations (e.g., Plotly)

Excel:
1. Basic   
- Cell operations, basic formulas (SUMIFS, COUNTIFS, AVERAGEIFS, IF, AND, OR, NOT & Nested Functions etc.)   
- Introduction to charts and basic data visualization   
- Data sorting and filtering   
- Conditional formatting

2. Intermediate   
- Advanced formulas (V/XLOOKUP, INDEX-MATCH, nested IF)   
- PivotTables and PivotCharts for summarizing data   
- Data validation tools   
- What-if analysis tools (Data Tables, Goal Seek)

3. Advanced   
- Array formulas and advanced functions   
- Data Model & Power Pivot
- Advanced Filter
- Slicers and Timelines in Pivot Tables   
- Dynamic charts and interactive dashboards

Power BI:
1. Data Modeling   
- Importing data from various sources   
- Creating and managing relationships between different datasets   
- Data modeling basics (star schema, snowflake schema)

2. Data Transformation   
- Using Power Query for data cleaning and transformation   
- Advanced data shaping techniques   
- Calculated columns and measures using DAX

3. Data Visualization and Reporting   - Creating interactive reports and dashboards   
- Visualizations (bar, line, pie charts, maps)   
- Publishing and sharing reports, scheduling data refreshes

Statistics Fundamentals: Mean, Median, Mode, Standard Deviation, Variance, Probability Distributions, Hypothesis Testing, P-values, Confidence Intervals, Correlation, Simple Linear Regression, Normal Distribution, Binomial Distribution, Poisson Distribution.

Like for more ๐Ÿ˜„โค๏ธ
๐Ÿ‘2โค1
๐—๐—ฃ ๐— ๐—ผ๐—ฟ๐—ด๐—ฎ๐—ป ๐—™๐—ฅ๐—˜๐—˜ ๐—ฉ๐—ถ๐—ฟ๐˜๐˜‚๐—ฎ๐—น ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฃ๐—ฟ๐—ผ๐—ด๐—ฟ๐—ฎ๐—บ๐Ÿ˜

Want hands-on experience from a top global company without leaving your home?

These FREE virtual internship by JPMorgan on Forage let you explore careers in

โœ… Software Engineering
โœ… Investment Banking
โœ… Quantitative Research

๐‹๐ข๐ง๐ค ๐Ÿ‘‡:-

https://pdlink.in/4kStNZi

Enroll For FREE & Get Certified ๐ŸŽ“
4 ways to run LLMs like DeepSeek-R1 locally on your computer:

Running LLMs locally is like having a superpower:

- Cost savings
- Privacy: Your data stays on your computer
- Plus, it's incredibly fun

Let us explore some of the best methods to achieve this.

1๏ธโƒฃ *Ollama*

* Running a model through Ollama is as simple as executing a command: ollama run deepseek-r1
* You can also install Ollama with a single command: curl -fsSL https:// ollama. com/install .sh | sh

2๏ธโƒฃ *LMStudio*

* Install LMStudio can be installed as an app on your computer.
* It offers a ChatGPT-like interface, allowing you to load and eject models as if you were handling tapes in a tape recorder.

3๏ธโƒฃ *vLLM*

* vLLM is a fast and easy-to-use library for LLM inference and serving.
* It has State-of-the-art serving throughput โšก๏ธ
* A few lines of code and you can locally run DeepSeek as an OpenAI compatible server with reasoning enabled.

4๏ธโƒฃ *LlamaCPP (the OG)*

* LlamaCPP enables LLM inference with minimal setup and state-of-the-art performance.
๐Ÿ‘1
๐Ÿค– PromptMakr

๐Ÿค– : AI | art | image | prompts
๐ŸŽจ : English

๐Ÿ’ฌ The platform for Prompt Engineers to generate and share unlimited AI art prompts for free.
๐Ÿ‘1
๐—ฆ๐˜๐—ฟ๐˜‚๐—ด๐—ด๐—น๐—ถ๐—ป๐—ด ๐˜„๐—ถ๐˜๐—ต ๐—ฃ๐—ผ๐˜„๐—ฒ๐—ฟ ๐—•๐—œ? ๐—ง๐—ต๐—ถ๐˜€ ๐—–๐—ต๐—ฒ๐—ฎ๐˜ ๐—ฆ๐—ต๐—ฒ๐—ฒ๐˜ ๐—ถ๐˜€ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐—จ๐—น๐˜๐—ถ๐—บ๐—ฎ๐˜๐—ฒ ๐—ฆ๐—ต๐—ผ๐—ฟ๐˜๐—ฐ๐˜‚๐˜!๐Ÿ˜

Mastering Power BI can be overwhelming, but this cheat sheet by DataCamp makes it super easy! ๐Ÿš€

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/4ld6F7Y

No more flipping through tabs & tutorialsโ€”just pin this cheat sheet and analyze data like a pro!โœ…๏ธ
Don't waste your lot of time when learning data analysis.

Here's how you may start your Data analysis journey

1๏ธโƒฃ - Avoid learning a programming language (e.g., SQL, R, or Python) for as long as possible.

This advice might seem strange coming from a former software engineer, so let me explain.

The vast majority of data analyses conducted each day worldwide are performed in the "solo analyst" scenario.

In this scenario, nobody cares about how the analysis was completed.

Only the results matter.

Also, the analysis methods (e.g., code) are rarely shared in this scenario.

Like for next steps

#dataanalysis
๐Ÿ‘7
๐Ÿญ๐Ÿฌ๐Ÿฌ% ๐—™๐—ฅ๐—˜๐—˜ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€๐Ÿ˜

Master Python, Machine Learning, SQL, and Data Visualization with hands-on tutorials & real-world datasets? ๐ŸŽฏ

This 100% FREE resource from Kaggle will help you build job-ready skillsโ€”no fluff, no fees, just pure learning!

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/3XYAnDy

Perfect for Beginners โœ…๏ธ
SQL is one of the core languages used in data science, powering everything from quick data retrieval to complex deep dive analysis. Whether you're a seasoned data scientist or just starting out, mastering SQL can boost your ability to analyze data, create robust pipelines, and deliver actionable insights.

Letโ€™s dive into a comprehensive guide on SQL for Data Science!

I have broken it down into three key sections to help you:

๐Ÿญ. ๐—ฆ๐—ค๐—Ÿ ๐—–๐—ผ๐—ป๐—ฐ๐—ฒ๐—ฝ๐˜๐˜€:
Get a handle on the essentials -> SELECT statements, filtering, aggregations, joins, window functions, and more.

๐Ÿฎ. ๐—ฆ๐—ค๐—Ÿ ๐—ถ๐—ป ๐——๐—ฎ๐˜†-๐˜๐—ผ-๐——๐—ฎ๐˜† ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ:
See how SQL fits into the daily data science workflow. From quick data queries and deep-dive analysis to building pipelines and dashboards, SQL is really useful for data scientists, especially for product data scientists.

๐Ÿฏ. ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ฆ๐—ค๐—Ÿ ๐—œ๐—ป๐˜๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฒ๐˜„๐˜€:
Learn what interviewers look for in terms of technical skills, design and engineering expertise, communication abilities, and the importance of speed and accuracy.
โค3
๐—ง๐—ผ๐—ฝ ๐—ฐ๐—ผ๐—บ๐—ฝ๐—ฎ๐—ป๐—ถ๐—ฒ๐˜€ ๐—ข๐—ณ๐—ณ๐—ฒ๐—ฟ๐—ถ๐—ป๐—ด ๐—™๐—ฅ๐—˜๐—˜ ๐˜ƒ๐—ถ๐—ฟ๐˜๐˜‚๐—ฎ๐—น ๐—ฒ๐˜…๐—ฝ๐—ฒ๐—ฟ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ฝ๐—ฟ๐—ผ๐—ด๐—ฟ๐—ฎ๐—บ๐˜€๐Ÿ˜

Want to work on real industry tasks, develop in-demand skills, and boost your resumeโ€”all for FREE? 

 Your dream career starts with real experienceโ€”grab this opportunity today!

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/4bCyUIM

๐Ÿ’ก No experience requiredโ€”just learn, upskill & build your portfolio! ๐Ÿš€
๐Ÿ‘2
๐Ÿฑ ๐—™๐—ฅ๐—˜๐—˜ ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐Ÿ˜

Whether youโ€™re a complete beginner or looking to level up, these courses cover Excel, Power BI, Data Science, and Real-World Analytics Projects to make you job-ready.

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/3DPkrga

All The Best ๐ŸŽŠ
๐Ÿ‘1