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SQL Programming Resources

SQL Programming Resources

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Find top SQL resources from global universities, cool projects, and learning materials for data analytics. Admin: @coderfun Useful links: heylink.me/DataAnalytics Promotions: @love_data

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📈 Análisis del canal de Telegram SQL Programming Resources

El canal SQL Programming Resources (@sqlanalyst) en el segmento lingüístico de Inglés es un actor destacado. Actualmente la comunidad reúne a 75 847 suscriptores, ocupando la posición 1 691 en la categoría Tecnologías y Aplicaciones y el puesto 4 346 en la región India.

📊 Métricas de audiencia y dinámica

Desde su creación el невідомо, el proyecto ha mostrado un crecimiento acelerado, reuniendo a 75 847 suscriptores.

Según los últimos datos del 09 junio, 2026, el canal mantiene una actividad estable. En los últimos 30 días la variación de miembros fue de 487, y en las últimas 24 horas de 14, conservando un alto alcance.

  • Estado de verificación: No verificado
  • Tasa de interacción (ER): El promedio de interacción de la audiencia es 3.45%. Durante las primeras 24 horas tras publicar, el contenido suele obtener 1.34% de reacciones respecto al total de suscriptores.
  • Alcance de las publicaciones: Cada publicación recibe en promedio 2 619 visualizaciones. En el primer día suele acumular 1 017 visualizaciones.
  • Reacciones e interacción: La audiencia responde de forma activa: el promedio de reacciones por publicación es 4.
  • Intereses temáticos: El contenido se centra en temas clave como row, sql, customer_id, logic, desc.

📝 Descripción y política de contenido

El autor describe el recurso como un espacio para expresar opiniones subjetivas:
Find top SQL resources from global universities, cool projects, and learning materials for data analytics. Admin: @coderfun Useful links: heylink.me/DataAnalytics Promotions: @love_data

Gracias a la alta frecuencia de actualizaciones (últimos datos recibidos el 10 junio, 2026), el canal mantiene la vigencia y un amplio alcance. La analítica demuestra que la audiencia interactúa activamente con el contenido, lo que lo convierte en un punto de referencia dentro de la categoría Tecnologías y Aplicaciones.

75 847
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Publicaciones del Canal
📊 𝗗𝗲𝗹𝗼𝗶𝘁𝘁𝗲 𝗙𝗿𝗲𝗲 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 𝗩𝗶𝗿𝘁𝘂𝗮𝗹 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 | 𝗔𝗽𝗽𝗹𝘆 𝗡𝗼𝘄!🚀 🔥
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🔥 Now, let’s move to the next topic SQL Date & Time Functions ✅ 🧠 1. Why Date Functions Matter? Almost every real-world database contains dates 👇 ✔ Orders ✔ Employee joining dates ✔ Transactions ✔ Login activity SQL date functions help analyze time-based data 💯 ⚡ 2. Common Date Functions Function : Purpose NOW() : Current date & time CURDATE() : Current date CURTIME() : Current time YEAR() : Extract year MONTH() : Extract month DAY() : Extract day DATEDIFF() : Difference between dates DATE_FORMAT() : Format dates 🔥 3. NOW(), CURDATE(), CURTIME() SELECT NOW(); ✔ Current date + time SELECT CURDATE(); ✔ Current date only SELECT CURTIME(); ✔ Current time only 🔥 4. YEAR(), MONTH(), DAY() SELECT YEAR(joining_date) FROM employees; SELECT MONTH(joining_date) FROM employees; SELECT DAY(joining_date) FROM employees; 🔥 5. DATEDIFF() 👉 Find difference between dates SELECT DATEDIFF('2026-06-10', '2026-06-01'); ✔ Result → 9 days 🔥 6. DATE_FORMAT() 👉 Format dates professionally SELECT DATE_FORMAT(NOW(), '%d-%m-%Y'); ✔ Example Output → 06-06-2026 🎯 7. Real Example 👉 Employees joined in 2025 SELECT * FROM employees WHERE YEAR(joining_date) = 2025; 🎯 8. Practice Tasks 1. Show current date 2. Show current time 3. Extract joining year from employee table 4. Find employees joined in specific month 5. Calculate days between two dates ⚡ Mini Challenge 🔥 👉 Find employees who joined in the last 30 days ✅ Solution Using DATEDIFF() SELECT * FROM employees WHERE DATEDIFF(CURDATE(), joining_date) <= 30; ✅ Alternative Solution Using DATE_SUB() SELECT * FROM employees WHERE joining_date >= DATE_SUB(CURDATE(), INTERVAL 30 DAY); 🔥 Pro Tip Date functions are heavily used in: 👉 Sales reports 👉 Monthly dashboards 👉 Retention analysis 👉 Time-series analytics 💯 Double Tap ❤️ For More
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𝗔𝗜 &𝗠𝗟 𝗙𝗥𝗘𝗘 𝗢𝗻𝗹𝗶𝗻𝗲 𝗠𝗮𝘀𝘁𝗲𝗿𝗰𝗹𝗮𝘀𝘀 😍 💫 Future-Proof Your AI & Machine Learning Career in 2026 with Gen
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🎓 𝗙𝗥𝗘𝗘 𝗢𝗻𝗹𝗶𝗻𝗲 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝗪𝗶𝘁𝗵 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗲𝘀 🚀 Here are some amazing FREE online courses that c
🎓 𝗙𝗥𝗘𝗘 𝗢𝗻𝗹𝗶𝗻𝗲 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝗪𝗶𝘁𝗵 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗲𝘀 🚀 Here are some amazing FREE online courses that can help you learn in-demand skills and earn valuable certificates. 📚✨ ✅ 100% Free Learning Resources ✅ Industry-Recognized Certifications ✅ Self-Paced Learning ✅ Beginner-Friendly Courses ✅ Boost Your Resume & LinkedIn Profile 🔗 𝗘𝗻𝗿𝗼𝗹𝗹 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘👇: https://pdlink.in/4uZQAXC 📌 Save this post and share it with friends who are looking to learn new skills for free!
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Let's now understand the above Data Analyst Roadmap in detail: 🧠↗️ 1️⃣ Learn Excel ⭐️ The foundation of data analysis. Learn formulas, pivot tables, charts, VLOOKUP/XLOOKUP, and conditional formatting. It helps in quick data cleaning and presenting insights. Excel Resources: https://whatsapp.com/channel/0029VaifY548qIzv0u1AHz3i 2️⃣ Learn SQL 💻 Essential for working with databases. Focus on SELECT, JOIN, GROUP BY, WHERE, and subqueries to extract and manipulate data from relational databases. SQL Resources: https://whatsapp.com/channel/0029VanC5rODzgT6TiTGoa1v 3️⃣ Learn Python 📱 A powerful tool for data manipulation and automation. Master libraries like pandas, numpy, matplotlib, and seaborn for data cleaning and visualization. Python Resources: https://whatsapp.com/channel/0029VaiM08SDuMRaGKd9Wv0L 4️⃣ Learn Power BI / Tableau 📈 These tools help create interactive dashboards and visual reports. Learn how to import data, create filters, use DAX (Power BI), and design clear visualizations. Power BI Resources: https://whatsapp.com/channel/0029Vai1xKf1dAvuk6s1v22c 5️⃣ Learn Statistics & Probability 🛍 Know about descriptive stats (mean, median, mode), inferential stats, distributions, hypothesis testing, and correlation. Vital for making sense of data trends. Statistics Resources: https://whatsapp.com/channel/0029Vat3Dc4KAwEcfFbNnZ3O 6️⃣ Learn Data Transformation 📈 Learn how to clean, shape, and prepare data for analysis. Use Python (pandas) or Power Query in Power BI, and understand ETL (Extract, Transform, Load) processes. Data Cleaning: https://whatsapp.com/channel/0029VarxgFqATRSpdUeHUA27 7️⃣ Learn Machine Learning 🧠 Understand basic concepts like regression, classification, clustering, and decision trees. You don’t need to be an ML expert, just grasp how models work and when to use them. Machine Learning: https://whatsapp.com/channel/0029VawtYcJ1iUxcMQoEuP0O 8️⃣ Build Projects & Portfolio 🏹 Apply what you’ve learned to real datasets—like sales analysis, churn prediction, or dashboard creation. Showcase your work on GitHub or a personal website. Data Analytics Projects: https://whatsapp.com/channel/0029VbAbnvPLSmbeFYNdNA29 9️⃣ Apply for Jobs 💼 With your skills and portfolio in place, start applying for data analyst roles. Tailor your resume using keywords from job descriptions and prepare to answer SQL and Excel tasks in interviews. Jobs & Internship Opportunities: https://whatsapp.com/channel/0029VaI5CV93AzNUiZ5Tt226 Share with credits: https://t.me/sqlspecialist Double Tap ♥️ for more
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𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 & 𝗔𝗜 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝘄𝗶𝘁𝗵 𝗣𝗹𝗮𝗰𝗲𝗺𝗲𝗻𝘁 𝗦𝘂𝗽𝗽𝗼𝗿𝘁😍 Build a Career in Data
𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 & 𝗔𝗜 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝘄𝗶𝘁𝗵 𝗣𝗹𝗮𝗰𝗲𝗺𝗲𝗻𝘁 𝗦𝘂𝗽𝗽𝗼𝗿𝘁😍 Build a Career in Data Science & AI with a job-focused curriculum designed by industry experts. ✅ Learn from IIT Alumni & Top Industry Professionals ✅ 500+ Hiring Partners ✅ 100% Job Assistance ✅ Real-World Projects & Case Studies ✅ Mock Interviews & Career Support Whether you're a student, fresher, or working professional, this program can help you transition into high-growth Data & AI roles. 🎯 Don't wait for opportunities — create them! 𝐑𝐞𝐠𝐢𝐬𝐭𝐞𝐫 𝐍𝐨𝐰 👇:-  https://pdlink.in/4fdWxJB ⚡ Limited Seats Available – Apply Fast!
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✅ SQL Interview Challenge 💼🧠 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝗲𝗿: How would you count how many employees are in each department? 𝗠𝗲: I’d use the GROUP BY clause with COUNT(*) to aggregate employee counts per department. 🔹 Query: SELECT department, COUNT(*) AS employee_count FROM employees GROUP BY department; ✔ Why it works: – GROUP BY groups rows by department – COUNT(*) counts employees in each group – Clean, scalable, and works with large datasets 🔎 Bonus Insight: To filter only departments with more than 5 employees: SELECT department, COUNT(*) AS employee_count FROM employees GROUP BY department HAVING COUNT(*) > 5; – HAVING filters aggregated results – Useful in dashboards, reports, and business logic 💬 Tap ❤️ for more SQL interview tips!
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🔥 Top SQL Projects for Data Analytics 🚀 If you're preparing for a Data Analyst role or looking to level up your SQL skills, working on real-world projects is the best way to learn! Here are some must-do SQL projects to strengthen your portfolio. 👇 🟢 Beginner-Friendly SQL Projects (Great for Learning Basics) ✅ Employee Database Management – Build and query HR data 📊 ✅ Library Book Tracking – Create a database for book loans and returns ✅ Student Grading System – Analyze student performance data ✅ Retail Point-of-Sale System – Work with sales and transactions 💰 ✅ Hotel Booking System – Manage customer bookings and check-ins 🏨 🟡 Intermediate SQL Projects (For Stronger Querying & Analysis) ⚡ E-commerce Order Management – Analyze order trends & customer data 🛒 ⚡ Sales Performance Analysis – Work with revenue, profit margins & KPIs 📈 ⚡ Inventory Control System – Optimize stock tracking 📦 ⚡ Real Estate Listings – Manage and analyze property data 🏡 ⚡ Movie Rating System – Analyze user reviews & trends 🎬 🔵 Advanced SQL Projects (For Business-Level Analytics) 🔹 Social Media Analytics – Track user engagement & content trends 🔹 Insurance Claim Management – Fraud detection & risk assessment 🔹 Customer Feedback Analysis – Perform sentiment analysis on reviews ⭐ 🔹 Freelance Job Platform – Match freelancers with project opportunities 🔹 Pharmacy Inventory System – Optimize stock levels & prescriptions 🔴 Expert-Level SQL Projects (For Data-Driven Decision Making) 🔥 Music Streaming Analysis – Study user behavior & song trends 🎶 🔥 Healthcare Prescription Tracking – Identify patterns in medicine usage 🔥 Employee Shift Scheduling – Optimize workforce efficiency ⏳ 🔥 Warehouse Stock Control – Manage supply chain data efficiently 🔥 Online Auction System – Analyze bidding patterns & sales performance 🛍️ 🔗 Pro Tip: If you're applying for Data Analyst roles, pick 3-4 projects, clean the data, and create interactive dashboards using Power BI/Tableau to showcase insights! React with ♥️ if you want detailed explanation of each project Share with credits: 👇 https://t.me/sqlspecialist Hope it helps :)
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𝗧𝗼𝗽 𝟱 𝗙𝗥𝗘𝗘 𝗔𝗜 & 𝗠𝗟 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 🚀 These FREE courses can help you develop industry-relevant ski
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What will this query return? SELECT REPLACE('I love Java', 'Java', 'SQL');
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Which function removes extra spaces from text?
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What does CONCAT() do in SQL?
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Which function converts text to uppercase?
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🚀 𝗣𝗮𝘆 𝗔𝗳𝘁𝗲𝗿 𝗣𝗹𝗮𝗰𝗲𝗺𝗲𝗻𝘁 | 𝗚𝗲𝘁 𝗛𝗶𝗿𝗲𝗱 𝗶𝗻 𝗧𝗼𝗽 𝗧𝗲𝗰𝗵 𝗖𝗼𝗺𝗽𝗮𝗻𝗶𝗲𝘀! 💼🔥 Master the most in-
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🔥Now, let’s move to the next topic: ✅ SQL String Functions 🧠 1. What are String Functions? String functions are used to 👉 manipulate text data 👉 clean messy data 👉 format outputs Used heavily in: ✔ Data Analytics ✔ Reporting ✔ ETL processes ⚡ 2. Common String Functions Function : Purpose UPPER() : Convert to uppercase LOWER() : Convert to lowercase LENGTH() : Count characters CONCAT() : Join strings SUBSTRING() : Extract part of string TRIM() : Remove spaces REPLACE() : Replace text 🔥 3. UPPER() & LOWER() SELECT UPPER(name) AS upper_name FROM employees; SELECT LOWER(name) AS lower_name FROM employees; 🔥 4. LENGTH() 👉 Count number of characters SELECT name, LENGTH(name) AS total_chars FROM employees; 🔥 5. CONCAT() 👉 Combine strings SELECT CONCAT(first_name, ' ', last_name) AS full_name FROM employees; 🔥 6. SUBSTRING() 👉 Extract part of string SELECT SUBSTRING(name, 1, 3) FROM employees; ✔ Extracts first 3 characters 🔥 7. TRIM() 👉 Remove extra spaces SELECT TRIM(' SQL '); ✔ Result → SQL 🔥 8. REPLACE() 👉 Replace text inside string SELECT REPLACE('I love Java', 'Java', 'SQL'); ✔ Result → I love SQL 🎯 9. Practice Tasks 1. Convert names to uppercase 2. Convert emails to lowercase 3. Combine first & last names 4. Extract first 4 letters of names 5. Remove extra spaces from city names ⚡ Mini Challenge 🔥 👉 Create employee usernames using: first 3 letters of name + employee ID Example: Amit + 101 → Ami101 🔥 Mini Challenge Solution 💯 👉 Requirement: Create username using: • First 3 letters of name • Employee ID Example: Amit + 101 → Ami101 ✅ SQL Solution SELECT name, emp_id, CONCAT(SUBSTRING(name, 1, 3), emp_id) AS username FROM employees; ✅ Example Output name : emp_id : username Amit : 101 : Ami101 Neha : 102 : Neh102 Ravi : 103 : Rav103 🧠 How It Works 👉 SUBSTRING(name, 1, 3) Extracts first 3 letters 👉 CONCAT() Combines extracted text with employee ID 🔥 Real-World Usage: String functions are commonly used for: 👉 Username generation 👉 Email formatting 👉 Data cleaning 👉 Customer IDs 💯 Double Tap ❤️ For More
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🚀 𝗧𝗖𝗦 𝗙𝗥𝗘𝗘 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝟮𝟬𝟮𝟲 – 𝗘𝗻𝗿𝗼𝗹𝗹 𝗡𝗼𝘄! TCS iON is offering FREE certifi
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🔥 Now, Let’s move to the next topic: ✅ UNION & UNION ALL in SQL 🧠 1. What is UNION? UNION is used to combine results from multiple SELECT queries. "Merge data from two tables into one result.” ⚡ 2. Rules for UNION ✔ Same number of columns ✔ Same datatype/order of columns 📊 Example Tables 👨‍💼 employees₂024 name • Amit • Neha 👨‍💼 employees₂025 name • Ravi • Neha 🔥 3. UNION Example SELECT name FROM employees_2024 UNION SELECT name FROM employees_2025; ✔ Removes duplicates automatically ✅ Result name • Amit • Neha • Ravi ⚡ 4. UNION ALL SELECT name FROM employees_2024 UNION ALL SELECT name FROM employees_2025; ✔ Keeps duplicates ✔ Faster than UNION ✅ Result name • Amit • Neha • Ravi • Neha 🔥 5. UNION vs UNION ALL UNION • Removes duplicates • Slower • Doesn't keep all rows UNION ALL • Doesn't remove duplicates • Faster • Keeps all rows ⚡ 6. ORDER BY with UNION SELECT name FROM employees_2024 UNION SELECT name FROM employees_2025 ORDER BY name; 🎯 7. Practice Tasks 1. Combine employee names using UNION 2. Combine employee names using UNION ALL 3. Identify duplicate removal 4. Sort UNION result using ORDER BY 5. Compare UNION vs UNION ALL output ⚡ Mini Challenge 🔥 👉 Combine customer names from two branches and keep duplicates 🔥 Mini Challenge Solution 💯 👉 Since duplicates should remain → use UNION ALL ✅ Example Tables 🏢 branch_a_customers customer_name • Amit • Neha 🏢 branch_b_customers customer_name • Ravi • Neha ✅ SQL Solution SELECT customer_name FROM branch_a_customers UNION ALL SELECT customer_name FROM branch_b_customers; ✅ Result customer_name • Amit • Neha • Ravi • Neha ✔ Duplicate Neha is preserved 💯 🧠 Why UNION ALL? 👉 UNION → removes duplicates 👉 UNION ALL → keeps duplicates + faster Double Tap ❤️ For More
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𝗧𝗼𝗽 𝟯 𝗙𝗥𝗘𝗘 𝗣𝘆𝘁𝗵𝗼𝗻 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 𝗜𝗻 𝟮𝟬𝟮𝟲! 🚀💻 These FREE certification course
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If you're working with data pipelines, these repositories are very useful: 🚀📊 ibis: A Python API that allows you to write queries once and run them on different data backends, such as DuckDB, BigQuery, and Snowflake. 🐍🔗 https://github.com/ibis-project/ibis pygwalker: Instantly turns a DataFrame into an interactive UI for visual data exploration. 📈🖥️ https://github.com/Kanaries/pygwalker katana: A fast and scalable web crawler, often used for security testing and large-scale data collection/search. 🕷️🔒 https://github.com/projectdiscovery/katana Double Tap ❤️ For More Free Resources
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