Top 100 Most Commonly Asked SQL Interview Questions and Answers Part1 sql

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#sql #sqlinterviewquestionsandanswers #sqlinterviewquestions • Hey, Everyone welcome back. So, today in this video we will learn about the Top 100 Most Commonly Asked SQL Interview Questions and Answers [ Part-1] . • This video is helpful for both Experienced and Freshers people. Here we are going to cover all the most important questions that you will definitely face during your interview process. So you should definitely watch this video before going to the interview. • 📢SQL Tutorial Playlist:- https://tinyurl.com/mr2csz9r • ✅Pdf File:- https://tinyurl.com/yncrwpfh • ✅Query For Practice:- https://tinyurl.com/ms9rbjyw • ✅QUESTION WE WILL COVER IN THIS VIDEO:- • 1. What is SQL? • 2. What are the different types of SQL statements? • 3. What is a primary key? • 4. What is a foreign key? • 5. What is a composite key? • 6. What is a subquery? • 8. What is the difference between a subquery and a join? • 9. What is a self-join? • 10. What are the different types of JOIN operations? • 11. What is normalization in SQL? • 12. What are the different normal forms in database normalization? • 13. What is an index? • 14. What is a clustered index? • 15. What is a non-clustered index? • 16. What is the difference between a primary key and a unique key? • 17. What is ACID in database transactions? • 18. What is the difference between UNION and UNION ALL? • 19. What is a view? • 20. What is a stored procedure • 21. What is a trigger • 22. What is a transaction? • 23. What is a deadlock? • 24. What is the difference between CHAR and VARCHAR data types? • 25. What is the difference between a function and a stored procedure? • 26. What is the difference between GROUP BY and HAVING clauses • 27. What is the difference between a database and a schema • 28. What is a data warehouse? • 29. What is the difference between OLTP and OLAP? • 30. What is a correlated subquery? • 31. What is the difference between a temporary table and a table variable? • 32. What is the difference between UNION and JOIN? • 33. What is the difference between WHERE and HAVING clauses? • 34. What is the difference between a database and a data warehouse? • 35. What is the difference between a primary key and a candidate key? • 36. What is the difference between a schema and a database? • 37. What is a self-join? • 38. What is a recursive SQL query? • 39. What is the difference between a correlated subquery and a nested subquery? • 40. What is the difference between a natural join and an equijoin? • 41. What is the difference between an outer join and an inner join? • 42. What is the difference between a left join and a right join? • 43. What is a full outer join? • 44. What is a self-referencing foreign key? • 45. What is the purpose of the GROUP BY clause? • 46. What is the purpose of the HAVING clause? • 47. What is the purpose of the ORDER BY clause? • 48. What is the purpose of the DISTINCT keyword? • 49. What is the purpose of the LIKE operator? • 50. What is the purpose of the IN operator? • ------------------------------------------- • 👋 Additional resources • ------------------------------------------- • Top 100 Most Commonly Asked SQL Interview Questions and Answers [ Part-1 ] #sql • • Top 100 Most Commonly Asked SQL Inter... • Introduction To SQL Server [ What is Database ]:- • • Introduction To SQL Server [ What is ... • What is DBMS || Database Management System [ In Hindi ]:- • • What is DBMS || Database Management S... • What is RDBMS ( Relational Database Management System ):- • • What is RDBMS ( Relational Database M... • Database Recovery From MDF And LDF File Using GUI:- • • Database Recovery From MDF And LDF Fi... • 2 Methods To Create LOGIN In SQL Server:- • • 2 Methods To Create LOGIN In SQL Serv... • How To Create a New Login/User In SQL Server:- • • How To Create a New Login / User In S... • How To Delete/Drop LOGIN In SQL Server:- • • How To Delete/Drop LOGIN In SQL Serve... • 🔔 Subscribe to my YouTube channel:- • https://www.youtube.com/channel/UCWfz... • Social Media Link • -------------------------------- • LinkedIn:- linkedin.com/in/deepan-kumar-patel-777591202 • Facebook:- / dipan.patel.. . • --------------------------------------------------------------------------------------------------------- • Thanks for watching... • Milestone Creator

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