Скачать или смотреть Day 3/45 SQL Challenge 🔥 Find Max Non-Duplicate ID | SQL Interview Questions and Answers

💥 Day 3 of 45-Day SQL Coding Challenge | SQL Interview Questions and Answers: Max Non-Duplicate Employee ID 💥

🎯 SQL Interview Questions and Answers - Complete Tutorial:
Learn how to find the maximum employee ID that appears only once (non-duplicate) in a table. This is one of the most frequently asked SQL interview questions and answers for data analyst and database developer positions.

✅ SQL Interview Questions and Answers Covered:
• Q: How to find non-duplicate values in SQL?
A: Use GROUP BY with HAVING COUNT(*) = 1 to filter unique values
• Q: What's the difference between WHERE and HAVING?
A: WHERE filters before grouping; HAVING filters after aggregation
• Q: How to find maximum value excluding duplicates?
A: Combine MAX() with GROUP BY and HAVING clause
• Q: When to use window functions vs GROUP BY?
A: Window functions for calculations across partitions; GROUP BY for aggregations
• Q: How to optimize duplicate detection queries?
A: Use window functions, proper indexing, and CTEs for better performance

📊 Complete SQL Interview Questions and Answers Topics:
✔️ GROUP BY & HAVING Interview Questions and Answers
✔️ Aggregate Functions (MAX, COUNT) Interview Questions and Answers
✔️ Duplicate Detection Interview Questions and Answers
✔️ Window Functions vs Aggregates Interview Questions and Answers
✔️ Self-Join Techniques Interview Questions and Answers
✔️ Query Optimization Interview Questions and Answers

⚡ Company-Specific SQL Interview Questions and Answers:
→ Amazon SQL Interview Questions and Answers 2025
→ Google Data Analyst Interview Questions and Answers
→ Meta (Facebook) Database Interview Questions and Answers
→ Microsoft SQL Developer Interview Questions and Answers
→ Oracle & MySQL Interview Questions and Answers

🧠 Advanced SQL Interview Questions and Answers:
• Duplicate Removal Interview Questions and Answers
• Aggregation Functions Interview Questions and Answers
• CTE vs Subquery Interview Questions and Answers
• Self-Join Performance Interview Questions and Answers
• Index Strategy for Duplicates Interview Questions and Answers

💡 Perfect For SQL Interview Questions and Answers Preparation:
✔️ SQL Fresher Interview Questions and Answers
✔️ Data Analyst Interview Questions and Answers 2025
✔️ Database Developer Interview Questions and Answers
✔️ SQL 2-5 Years Experience Interview Questions and Answers
✔️ FAANG SQL Interview Questions and Answers

📚 Related SQL Interview Questions and Answers:
• How to remove duplicate records? (Interview Answer)
• Find second highest salary? (Interview Question & Answer)
• Count distinct values? (Interview Questions and Answers)
• Identify missing numbers in sequence? (Interview Q&A)

🔥 45-Day SQL Interview Questions and Answers Challenge:
→ Day 1:    • SQL Interview | Day 1 | 45 days SQL code c...  
→ Day 2:    • SQL Interview | Day 2 | 45 days SQL code c...  
→ Day 3:    • Day 3/45 SQL Challenge 🔥 Find Max Non-Dupl...  

💬 Share Your SQL Interview Questions and Answers Experience:
"Have you been asked this SQL interview question? Share your experience!"
"What's your approach to finding duplicates? Comment below!"
"Which SQL interview questions and answers helped you crack interviews?"

🔔 SUBSCRIBE for Daily SQL Interview Questions and Answers!
👍 LIKE if this SQL interview question and answer helped!
💬 COMMENT your SQL interview questions and answers!
📤 SHARE with friends preparing for SQL interviews!

#SQLInterviewQuestionsAndAnswers #Day4Challenge #DuplicateDetection #groupby

#SQLInterview, #SQLInterviewQuestions, #InterviewQuestionsAndAnswers, #DataAnalystInterview, #SQLCodingChallenge, #45DayChallenge, #GROUPBY, #HAVINGClause, #DuplicateDetection, #SQLOptimization, #TechInterview, #CodingInterview, #InterviewPrep, #SQLTutorial, #LearnSQL, #DataEngineer, #DatabaseInterview, #FAANGInterview, #SQLQueries, #AggregateFunctions, #SQLForBeginners, #AdvancedSQL, #InterviewQuestions2025, #TechJobs, #CareerGrowth, #ProgrammingInterview, #DataScience, #SQLTips, #CodingChallenge, #DailyCoding


SQL interview questions and answers,45 day SQL challenge,day 4 coding,GROUP BY HAVING,duplicate detection SQL,max non-duplicate,data analyst interview Q&A,SQL aggregation,find unique values,SQL optimization,database interview answers,SQL tutorial,HAVING vs WHERE,aggregate functions,SQL coding interview,FAANG SQL,tech interview prep,learn SQL,SQL query optimization,interview 2025,SQL jobs,coding challenge,daily SQL,remove duplicates