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SQL Server Interview Questions and Answers SQL Interview Questions
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20 Plus SQL Server Interview Questions and Answers • For more SQL videos visit https://www.questpond.com/sql-server-... • For more such videos visit http://www.questpond.com • For more such videos subscribe https://www.youtube.com/questpondvide... • Syllabus covered in this video :- • 00:00 Introduction • 01:22 Question 1 :- Explain normalization ? • 04:45 Question 2 :- How to implement normalization ? • 05:44 Question 3 :- What is denormalization ? • 07:07 Question 4 :- Explain OLTP vs OLAP ? • 10:40 Question 5 :- Explain 1st,2nd and 3rd Normal form ? • 18:02 Question 6 :- Primary Key vs Unique key ? • 20:02 Question 7 :- Differentiate between Char vs Varchar ? • 21:32 Question 8 :- Differentiate between Char vs NChar ? • 22:25 Question 9 :- Whats the size of Char vs NChar ? • 23:32 Question 10 :- What is the use of Index ? • 24:03 Question 11 :- How does it make search faster? • 26:36 Question 12 :- What are the two types of Indexes ? • 26:51 Question 13 :- Clustered vs Non-Clustered index • 29:14 Question 14 :- Function vs Stored Procedures • 33:27 Question 15 :- What are triggers and why do you need it ? • 34:58 Question 16 :- What are types of triggers ? • 36:57 Question 17 :- Differentiate between After trigger vs Instead Of ? • 37:03 Question 18 :- What is need of Identity ? • 38:10 Question 19 :- Explain transactions and how to implement it ? • 42:55 Question 20 :- What are inner joins ? • 45:00 Question 21 :- Explain Left join ? • 46:25 Question 22 :- Explain Right join ? • 46:40 Question 23 :- Explain Full outer joins ? • 47:34 Question 24 :- Explain Cross joins ? • SQL Interview Questions Answers - Part 2 :- • Question 25:-Why do we need UNION ? • Question 26:-Differentiate between Union vs Union All ? • Question 27:-can we have unequal columns in Union? • Question 28:-Can column have different data types in Union ? • Question 29:- Which Aggregate function have you used ? • Question 30:- When to use Group by ? • Question 31:- Can we select column which is not part of group by ? • Question 32:- What is having clause ? • Question 33:- Having clause vs Where clause • Question 34:- How can we sort records ? • Question 35:- Whats the default sort ? • Question 36:- How can we remove duplicates ? • Question 37:- Select the first top X records ? • Question 38:- How to handle NULLS ? • Question 39:- What is use of wild cards ? • Question 40:- What is the use of Alias ? • Question 41:- How to write a case statement ? • Question 42:- What is self reference tables ? • Question 43:- What is self join ? • Question 44:- Explain the between clause ? • SQL Interview Questions Answers - Part 3 :- • Question 45:- Explain SubQuery? • Question 46:- Can inner Subquery return multiple results? • Question 47:- What is Co-related Query? • Question 48:- Differentiate between Joins and SubQuery? • Question 49:- Performance Joins vs SubQuery? • SQL Server Interview Questions Answers - Part 4 :- • Question 50:- Find NTH Highest Salary in SQL. • SQL Server Interview Questions Answers - Part 5 • Question 51:- Select the top nth highest salary using correlated Queries? • Question 52:- Select top nth using using TSQL • Question 53:- Performance comparison of all the methods. • See our other Step by Step video series below :- • For more such videos subscribe / questpondvideos • JavaScript Interview Questions: • JavaScript Interview Questions Answ... • Learn SQL Server Step by Step http://tinyurl.com/ja4zmwu • Learn Angular tutorial step by step https://tinyurl.com/ycd9j895 • OOPS interview questions and answers:- • OOPS Interview Questions and Answers ... • ASP.NET MVC Core Interview Questions with answers:- • ASP.NET MVC Interview Questions with ... • C# interview questions and answers:- • C# Interview Questions and Answers | ... • C# tutorial for beginners(4 hrs):- • C# Tutorial for Beginners | C# Step b... • Learn Azure Step by Step:- • Azure Tutorial for Beginners | Azure ... • Azure AZ-900 fundamentals certification :- • AZ 900 Certification | AZ 900 Certifi... • AZ- 204 certification Azure:- • Azure 204 Certification | AZ 204 Exam... • Learn MVC 5 step by step in 16 hours:- • Learn ASP.NET MVC 5 ( Model view cont... • Learn Design Pattern Step by Step https://goo.gl/eJdn0m • Learn MSBI Step by Step in 32 hours:- https://goo.gl/TTpFZN • Python Tutorial for Beginners:- • Python Tutorial for Beginners | Learn... • Learn Data Science in 1 hour :- https://tinyurl.com/y5o7qbau • Learn Power BI Step by Step:- https://tinyurl.com/y6thhkxw • PHP Interview Questions : • PHP Interview Questions and Answers |... • For more details contact [email protected] OR call (+91) 99675 90707, (+91) 77009 75156, 022-49786776. • Music Copyright :- • Corporate Business by Infraction • https://inaudio.org/ • Video Link: • Infraction - Corporate Business Instr... • If You want to contact the artist :- • Email: [email protected] • Website: https://inaudio.org • YouTube: / infraction • Facebook: / inaudio.org • Spotify: https://open.spotify.com/artist/7qlhX... • Instagram: / infractionimhere • #SQLQuestions #SQLInterviewQuestionsandAnswers #SQLServerQuestions
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