Data Analytics Projects - SQL, Excel, Tableau, Python & Power BI Interview Resources
Covering all technical and popular stuff about anything related to Data Science: AI, Big Data, Machine Learning, Statistics, general Math and the applications of former. Ads/ Promo: @love_data
Show more๐ Analytical overview of Telegram channel Data Analytics Projects - SQL, Excel, Tableau, Python & Power BI Interview Resources
Channel Data Analytics Projects - SQL, Excel, Tableau, Python & Power BI Interview Resources (@sqlproject) in the English language segment is an active participant. Currently, the community unites 39 525 subscribers, ranking 4 699 in the Education category and 10 043 in the India region.
๐ Audience metrics and dynamics
Since its creation on ะฝะตะฒัะดะพะผะพ, the project has demonstrated rapid growth, gathering an audience of 39 525 subscribers.
According to the latest data from 23 June, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by 152 over the last 30 days and by -5 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 2.19%. Within the first 24 hours after publication, content typically collects 0.50% reactions from the total number of subscribers.
- Post reach: On average, each post receives 866 views. Within the first day, a publication typically gains 196 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 2.
- Thematic interests: Content is focused on key topics such as analytic, dataset, visualization, sql, learning.
๐ Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
โCovering all technical and popular stuff about anything related to Data Science: AI, Big Data, Machine Learning, Statistics, general Math and the applications of former.
Ads/ Promo: @love_dataโ
Thanks to the high frequency of updates (latest data received on 24 June, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Education category.
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| 2 | ๐ณ ๐๐ฅ๐๐ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐๐ผ๐๐ฟ๐๐ฒ๐ ๐ง๐ผ ๐๐ป๐ฟ๐ผ๐น๐น ๐๐ป ๐ฎ๐ฌ๐ฎ๐ฒ๐ย
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| 3 | ๐ Top Projects for Data Analytics Portfolio ๐๐ป
๐ 1. Sales Dashboard (Excel / Power BI / Tableau)
โถ๏ธ Analyze monthly/quarterly sales by region, category
โถ๏ธ Show KPIs: Revenue, YoY Growth, Profit Margin
๐ 2. E-commerce Customer Segmentation (Python + Clustering)
โถ๏ธ Use RFM (Recency, Frequency, Monetary) model
โถ๏ธ Visualize clusters with Seaborn / Plotly
๐ 3. Churn Prediction Model (Python + ML)
โถ๏ธ Dataset: Telecom or SaaS customer data
โถ๏ธ Techniques: Logistic Regression, Decision Tree
๐ฆ 4. Supply Chain Delay Analysis (SQL + Tableau)
โถ๏ธ Identify causes of late deliveries using historical order data
โถ๏ธ Visualize supplier-wise performance
๐ 5. A/B Testing for Product Feature (SQL + Python)
โถ๏ธ Simulate or use real test data (e.g. button click-through rates)
โถ๏ธ Metrics: Conversion Rate, Significance Test
๐ 6. COVID-19 Trend Tracker (Python + Dash)
โถ๏ธ Scrape or pull live data from APIs
โถ๏ธ Show cases, recovery, testing rates by country
๐
7. HR Analytics โ Attrition Analysis (Excel / Python)
โถ๏ธ Predict or explore employee exits
โถ๏ธ Use decision trees or visual storytelling
๐ก Tip: Upload projects to GitHub + create a simple portfolio site or blog to stand out.
๐ฌ Double Tap โค๏ธ For More | 497 |
| 4 | โ
Power BI Roadmap: Step-by-Step Guide to Master Power BI ๐๐ป
Whether you're aiming to be a data analyst, business intelligence pro, or dashboard expert โ this roadmap has you covered ๐
๐ 1. Power BI Basics
โฆย Get familiar with Power BI Desktop interface
โฆย Connect to data sources (Excel, CSV, databases)
โฆย Learn Basic visualizations: tables, charts, slicers
๐ 2. Data Transformation & Modeling
โฆย Use Power Query Editor to clean & shape data
โฆย Create relationships between tables
โฆย Understand data types & formats
๐ 3. DAX Fundamentals
โฆย Master calculated columns & measures
โฆย Learn core functions: SUM, CALCULATE, FILTER, RELATED
โฆย Use variables and time intelligence functions
๐ 4. Advanced Visualizations
โฆย Build interactive reports and dashboards
โฆย Use bookmarks, buttons & drill-throughs
โฆย Customize visuals & layouts for storytelling
๐ 5. Data Refresh & Gateway
โฆย Set up scheduled refresh with data gateways
โฆย Understand live vs import modes
โฆย Manage refresh performance
๐ 6. Row-Level Security (RLS)
โฆย Learn to restrict data access by user roles
โฆย Implement roles & test security in reports
๐ 7. Power BI Service & Collaboration
โฆย Publish reports to Power BI Service
โฆย Share dashboards and collaborate with teams
โฆย Use workspaces, apps, and permissions
๐ 8. Power BI Mobile & Embedded
โฆย Optimize reports for mobile devices
โฆย Embed Power BI visuals in apps or websites
๐ 9. Performance Optimization
โฆย Use Performance Analyzer to tune reports
โฆย Optimize data models & DAX queries
โฆย Best practices for large datasets
๐ 10. Power BI API & Automation
โฆย Use Power BI REST API for automation
โฆย Integrate with Power Automate & Azure services
๐ 11. Real Projects & Practice
โฆย Build sample dashboards: Sales, Marketing, Finance
โฆย Join challenges on platforms like Enterprise DNA, Radacad
๐ 12. Certification & Career Growth
โฆย Prepare for DA-100 / PL-300 certification
โฆย Build portfolio & LinkedIn presence
โฆย Apply for BI Analyst & Power BI Developer roles
๐ก Pro Tip: Combine Power BI skills with SQL and Python for a powerful data career combo!
๐ฌ Double Tap โฅ๏ธ For More! | 412 |
| 5 | ๐๐ฐ๐ฐ๐ฒ๐ป๐๐๐ฟ๐ฒ ๐๐ฅ๐๐ ๐ฉ๐ถ๐ฟ๐๐๐ฎ๐น ๐๐ป๐๐ฒ๐ฟ๐ป๐๐ต๐ถ๐ฝ ๐ณ๐ผ๐ฟ ๐๐ฎ๐๐ฎ ๐๐ป๐ฎ๐น๐๐๐ถ๐ฐ๐ ๐๐ถ๐๐ต ๐๐ฟ๐ฒ๐ฒ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ฒ ๐
Join the Accenture Virtual Internship Program and learn industry-relevant analytics skills with a free certificate ๐
โจ Learn from Accenture Industry Experts
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โจ Gain Practical Analytics Experience
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๐ฅ Start your Data Analytics journey today and gain valuable virtual internship experience from a top global company. | 331 |
| 6 | SQL isn't easy!
Itโs the powerful language that helps you manage and manipulate data in databases.
To truly master SQL, focus on these key areas:
0. Understanding the Basics: Get comfortable with SQL syntax, data types, and basic queries like SELECT, INSERT, UPDATE, and DELETE.
1. Mastering Data Retrieval: Learn advanced SELECT statements, including JOINs, GROUP BY, HAVING, and subqueries to retrieve complex datasets.
2. Working with Aggregation Functions: Use functions like COUNT(), SUM(), AVG(), MIN(), and MAX() to summarize and analyze data efficiently.
3. Optimizing Queries: Understand how to write efficient queries and use techniques like indexing and query execution plans for performance optimization.
4. Creating and Managing Databases: Master CREATE, ALTER, and DROP commands for building and maintaining database structures.
5. Understanding Constraints and Keys: Learn the importance of primary keys, foreign keys, unique constraints, and indexes for data integrity.
6. Advanced SQL Techniques: Dive into CASE statements, CTEs (Common Table Expressions), window functions, and stored procedures for more powerful querying.
7. Normalizing Data: Understand database normalization principles and how to design databases to avoid redundancy and ensure consistency.
8. Handling Transactions: Learn how to use BEGIN, COMMIT, and ROLLBACK to manage transactions and ensure data integrity.
9. Staying Updated with SQL Trends: The world of databases evolvesโstay informed about new SQL functions, database management systems (DBMS), and best practices.
โณ With practice, hands-on experience, and a thirst for learning, SQL will empower you to unlock the full potential of data!
You can read detailed article here
I've curated essential SQL Interview Resources๐
https://t.me/mysqldata
Share with credits: https://t.me/sqlspecialist
Hope it helps :) | 305 |
| 7 | ๐ ๐ง๐ผ๐ฝ ๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ผ๐ณ๐ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป๐ ๐ฌ๐ผ๐ ๐๐ฎ๐ป ๐๐ฒ๐ฎ๐ฟ๐ป ๐ณ๐ผ๐ฟ ๐๐ฅ๐๐! ๐ผ๐ฅ
These free courses can help you build in-demand tech skills for 2026 ๐
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๐ฅ Start learning today and future-proof your career with Microsoft-certified skills. | 266 |
| 8 | Data Analytics Interview Topics in structured way :
๐ตPython: Data Structures: Lists, tuples, dictionaries, sets Pandas: Data manipulation (DataFrame operations, merging, reshaping) NumPy: Numeric computing, arrays Visualization: Matplotlib, Seaborn for creating charts
๐ตSQL: Basic : SELECT, WHERE, JOIN, GROUP BY, ORDER BY Advanced : Subqueries, nested queries, window functions DBMS: Creating tables, altering schema, indexing Joins: Inner join, outer join, left/right join Data Manipulation: UPDATE, DELETE, INSERT statements Aggregate Functions: SUM, AVG, COUNT, MAX, MIN
๐ตExcel: Formulas & Functions: VLOOKUP, HLOOKUP, IF, SUMIF, COUNTIF Data Cleaning: Removing duplicates, handling errors, text-to-columns PivotTables Charts and Graphs What-If Analysis: Scenario Manager, Goal Seek, Solver
๐ตPower BI:
Data Modeling: Creating relationships between datasets
Transformation: Cleaning & shaping data using
Power Query Editor Visualization: Creating interactive reports and dashboards
DAX (Data Analysis Expressions): Formulas for calculated columns, measures Publishing and sharing reports, scheduling data refresh
๐ต Statistics Fundamentals: Mean, median, mode Variance, standard deviation Probability distributions Hypothesis testing, p-values, confidence intervals
๐ตData Manipulation and Cleaning: Data preprocessing techniques (handling missing values, outliers), Data normalization and standardization Data transformation Handling categorical data
๐ตData Visualization: Chart types (bar, line, scatter, histogram, boxplot) Data visualization libraries (matplotlib, seaborn, ggplot) Effective data storytelling through visualization
Also showcase these skills using data portfolio if possible
Like for more content like this ๐ | 317 |
| 9 | ๐๐ฎ๐๐ฎ ๐ฆ๐ฐ๐ถ๐ฒ๐ป๐ฐ๐ฒ ๐๐ถ๐๐ต ๐๐ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐๐ผ๐๐ฟ๐๐ฒ | ๐ญ๐ฌ๐ฌ% ๐๐ผ๐ฏ ๐๐๐๐ถ๐๐๐ฎ๐ป๐ฐ๐ฒ๐
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Hurry Up ๐โโ๏ธ! Limited seats are available. | 322 |
| 10 | Step-by-step Guide to Create a Data Analyst Portfolio:
โ
1๏ธโฃ Choose Your Tools & Skills
Decide what tools you want to showcase:
โข Excel, SQL, Python (Pandas, NumPy)
โข Data visualization (Tableau, Power BI, Matplotlib, Seaborn)
โข Basic statistics and data cleaning
โ
2๏ธโฃ Plan Your Portfolio Structure
Your portfolio should include:
โข Home Page โ Brief intro about you
โข About Me โ Skills, tools, background
โข Projects โ Showcased with explanations and code
โข Contact โ Email, LinkedIn, GitHub
โข Optional: Blog or case studies
โ
3๏ธโฃ Build Your Portfolio Website or Use Platforms
Options:
โข Build your own website with HTML/CSS or React
โข Use GitHub Pages, Tableau Public, or LinkedIn articles
โข Make sure itโs easy to navigate and mobile-friendly
โ
4๏ธโฃ Add 3โ5 Detailed Projects
Projects should cover:
โข Data cleaning and preprocessing
โข Exploratory Data Analysis (EDA)
โข Data visualization dashboards or reports
โข SQL queries or Python scripts for analysis
Each project should include:
โข Problem statement
โข Dataset source
โข Tools & techniques used
โข Key findings & visualizations
โข Link to code (GitHub) or live dashboard
โ
5๏ธโฃ Publish & Share Your Portfolio
Host your portfolio on:
โข GitHub Pages
โข Tableau Public
โข Personal website or blog
โ
6๏ธโฃ Keep It Updated
โข Add new projects regularly
โข Improve old ones based on feedback
โข Share insights on LinkedIn or data blogs
๐ก Pro Tips
โข Focus on storytelling with data โ explain what the numbers mean
โข Use clear visuals and dashboards
โข Highlight business impact or insights from your work
โข Include a downloadable resume and links to your profiles
๐ฏ Goal: Anyone visiting your portfolio should quickly understand your data skills, see your problem-solving ability, and know how to reach you.
๐ Tap โค๏ธ if you found this helpful! | 351 |
| 11 | ๐ง SQL Interview Question (Top-N per Group + Tie Handling - Tricky)
๐
scores(student_id, subject, marks)
โ Ques :
๐ Find students who scored the highest marks in each subject.
๐ If multiple students have the same top score, include all of them (handle ties).
๐งฉ How Interviewers Expect You to Think
โข Group data by subject ๐
โข Identify highest marks within each group
โข Handle ties correctly (donโt lose rows)
โข Use window functions (RANK vs ROW_NUMBER)
๐ก SQL Solution
SELECT
student_id,
subject,
marks
FROM (
SELECT
scores.student_id,
scores.subject,
scores.marks,
RANK() OVER (
PARTITION BY scores.subject
ORDER BY scores.marks DESC
) AS rnk
FROM scores
) ranked_scores
WHERE ranked_scores.rnk = 1;
๐ฅ Why This Question Is Powerful
โข Tests Top-N per group (very common pattern) ๐ง
โข Checks understanding of RANK vs ROW_NUMBER
โค๏ธ React if you want more real interview-level SQL questions ๐ | 348 |
| 12 | โ
SQL Checklist for Data Analysts ๐ง ๐ป
๐ 1. Understand SQL Basics
โ What is SQL and how databases work
โ Relational vs non-relational databases
โ Table structure: rows, columns, keys
๐งฉ 2. Core SQL Queries
โ SELECT, FROM, WHERE
โ ORDER BY, LIMIT
โ DISTINCT, BETWEEN, IN, LIKE
๐ 3. Master Joins
โ INNER JOIN
โ LEFT JOIN / RIGHT JOIN
โ FULL OUTER JOIN
โ Practice combining data from multiple tables
๐ 4. Aggregation & Grouping
โ COUNT, SUM, AVG, MIN, MAX
โ GROUP BY & HAVING
โ Aggregate filtering
๐ 5. Subqueries & CTEs
โ Use subqueries inside SELECT/WHERE
โ WITH clause for common table expressions
โ Nested queries and optimization basics
๐งฎ 6. Window Functions
โ RANK(), ROW_NUMBER(), DENSE_RANK()
โ PARTITION BY & ORDER BY
โ LEAD(), LAG(), SUM() OVER
๐งน 7. Data Cleaning with SQL
โ Remove duplicates (DISTINCT, ROW_NUMBER)
โ Handle NULLs
โ Use CASE WHEN for conditional logic
๐ ๏ธ 8. Practice & Real Tasks
โ Write queries from real datasets
โ Analyze sales, customers, transactions
โ Build reports with JOINs and aggregations
๐ 9. Tools to Use
โ PostgreSQL / MySQL / SQL Server
โ db-fiddle, Mode Analytics, DataCamp, StrataScratch
โ VS Code + SQL extensions
๐ 10. Interview Prep
โ Practice 50+ SQL questions
โ Solve problems on LeetCode, HackerRank
โ Explain query logic clearly in mock interviews
๐ฌ Tap โค๏ธ if this was helpful! | 359 |
| 13 | ๐๐ฑ ๐๐ฅ๐๐ ๐๐๐ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐๐ผ๐๐ฟ๐๐ฒ๐ ๐ฎ๐ฌ๐ฎ๐ฒ ๐
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โณ Start Learning Today & Boost Your Career! | 368 |
| 14 | ๐๐ป๐๐ฒ๐ฟ๐๐ถ๐ฒ๐๐ฒ๐ฟ: You have 2 minutes to solve this SQL query.
List employees who earn more than their department manager's salary from the employees table (manager_id references employee id).
๐ ๐ฒ: Challenge accepted!
SELECT e1.name, e1.department, e1.salary
FROM employees e1
JOIN employees e2 ON e1.department = e2.department AND e1.manager_id = e2.id
WHERE e1.salary > e2.salary;
I self-joined the employees table on department and manager_id to compare each employee's salary against their manager's in the same department. The WHERE clause filters for employees earning more. This tests join mastery for hierarchical data, common in org charts.
๐ง๐ถ๐ฝ ๐ณ๐ผ๐ฟ ๐ฆ๐ค๐ ๐๐ผ๐ฏ ๐ฆ๐ฒ๐ฒ๐ธ๐ฒ๐ฟ๐:
Self-joins shine for intra-table relationships like managers/employees or siblingsโpractice with employee hierarchies to impress in data engineering interviews!
React with โค๏ธ for more | 596 |
| 15 | โ
Complete SQL Roadmap in 2 Months
Month 1: Strong SQL Foundations
Week 1: Database and query basics
- What SQL does in analytics and business
- Tables, rows, columns
- Primary key and foreign key
- SELECT, DISTINCT
- WHERE with AND, OR, IN, BETWEEN
Outcome: You understand data structure and fetch filtered data.
Week 2: Sorting and aggregation
- ORDER BY and LIMIT
- COUNT, SUM, AVG, MIN, MAX
- GROUP BY
- HAVING vs WHERE
- Use case like total sales per product
Outcome: You summarize data clearly.
Week 3: Joins fundamentals
- INNER JOIN
- LEFT JOIN
- RIGHT JOIN
- Join conditions
- Handling NULL values
Outcome: You combine multiple tables correctly.
Week 4: Joins practice and cleanup
- Duplicate rows after joins
- SELF JOIN with examples
- Data cleaning using SQL
- Daily join-based questions
Outcome: You stop making join mistakes.
Month 2: Analytics-Level SQL
Week 5: Subqueries and CTEs
- Subqueries in WHERE and SELECT
- Correlated subqueries
- Common Table Expressions
- Readability and reuse
Outcome: You write structured queries.
Week 6: Window functions
- ROW_NUMBER, RANK, DENSE_RANK
- PARTITION BY and ORDER BY
- Running totals
- Top N per category problems
Outcome: You solve advanced analytics queries.
Week 7: Date and string analysis
- Date functions for daily, monthly analysis
- Year-over-year and month-over-month logic
- String functions for text cleanup
Outcome: You handle real business datasets.
Week 8: Project and interview prep
- Build a SQL project using sales or HR data
- Write KPI queries
- Explain query logic step by step
- Daily interview questions practice
Outcome: You are SQL interview ready.
Practice platforms
- LeetCode SQL
- HackerRank SQL
- Kaggle datasets
Double Tap โฅ๏ธ For Detailed Explanation of Each Topic | 483 |
| 16 | ๐ ๐๐๐ ๐๐ฅ๐๐ ๐ข๐ป๐น๐ถ๐ป๐ฒ ๐๐ผ๐๐ฟ๐๐ฒ๐ ๐ฎ๐ฌ๐ฎ๐ฒ ๐
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| 17 | โ
Step-by-Step Approach to Learn Programming ๐ป๐
โ Pick a Programming Languageย
Start with beginner-friendly languages that are widely used and have lots of resources.ย
โ Python โ Great for beginners, versatile (web, data, automation)ย
โ JavaScript โ Perfect for web developmentย
โ C++ / Java โ Ideal if you're targeting DSA or competitive programmingย
Goal: Be comfortable with syntax, writing small programs, and using an IDE.
โ Learn Basic Programming Conceptsย
Understand the foundational building blocks of coding:ย
โ Variables, data typesย
โ Input/outputย
โ Loops (for, while)ย
โ Conditional statements (if/else)ย
โ Functions and scopeย
โ Error handlingย
Tip: Use visual platforms like W3Schools, freeCodeCamp, or Sololearn.
โ Understand Data Structuresย Algorithms (DSA)ย
โ Arrays, Stringsย
โ Linked Lists, Stacks, Queuesย
โ Hash Maps, Setsย
โ Trees, Graphsย
โ Sortingย Searchingย
โ Recursion, Greedy, Backtrackingย
โ Dynamic Programmingย
Use GeeksforGeeks, NeetCode, or Striver's DSA Sheet.
โ Practice Problem Solving Dailyย
โ LeetCode (real interview Qs)ย
โ HackerRank (step-by-step)ย
โ Codeforces / AtCoder (competitive)ย
Goal: Focus on logic, not just solutions.
โ Build Mini Projectsย
โ Calculatorย
โ To-do list appย
โ Weather app (using APIs)ย
โ Quiz appย
โ Rock-paper-scissors gameย
Projects solidify your concepts.
โ Learn Gitย GitHubย
โ Initialize a repoย
โ Commitย push codeย
โ Branch and mergeย
โ Host projects on GitHubย
Must-have for collaboration.
โ Learn Web Development Basicsย
โ HTML โ Structureย
โ CSS โ Stylingย
โ JavaScript โ Interactivityย
Then explore:ย
โ React.jsย
โ Node.js + Expressย
โ MongoDB / MySQL
โ Choose Your Career Pathย
โ Web Dev (Frontend, Backend, Full Stack)ย
โ App Dev (Flutter, Android)ย
โ Data Science / MLย
โ DevOps / Cloud (AWS, Docker)
โ Work on Real Projectsย Internshipsย
โ Build a portfolioย
โ Clone real apps (Netflix UI, Amazon clone)ย
โ Join hackathonsย
โ Freelance or open sourceย
โ Apply for internships
โ Stay Updatedย Keep Improvingย
โ Follow GitHub trendsย
โ Dev YouTube channels (Fireship, etc.)ย
โ Tech blogs (Dev.to, Medium)ย
โ Communities (Discord, Reddit, X)
๐ฏ Remember:ย
โข Consistency > Intensityย
โข Learn by buildingย
โข Debugging is learningย
โข Track progress weekly
Useful WhatsApp Channels to Learn Programming Languages ๐
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