Must and Basic Questions on SQL Server.
In this video we have covered some basic questions on SQL Server which are summarized below :-
Question 1 :- Explain normalization ?
Question 2 :- How to implement normalization ?
Question 3 :- What is denormalization ?
Question 4 :- Explain OLTP vs OLAP ?
Question 5 :- Explain 1st,2nd and 3rd Normal form ?
Question 6 :- Primary Key vs Unique key ?
Question 7 :- Differentiate between Char vs Varchar ?
Question 8 :- Differentiate between Char vs NChar ?
Question 9 :- Whats the size of Char vs NChar ?
Question 10 :- What is the use of Index ?
Question 11 :- How does it make search faster?
Question 12 :- What are the two types of Indexes ?
Question 13 :- Clustered vs Non-Clustered index
Question 14 :- Function vs Stored Procedures
Question 15 :- What are triggers and why do you need it ?
Question 16 :- What are types of triggers ?
Question 17 :- Differentiate between After trigger vs Instead Of ?
Question 18 :- What is need of Identity ?
Question 19 :- Explain transactions and how to implement it ?
Question 20 :- What are inner joins ?
Question 21 :- Explain Left join ?
Question 22 :- Explain Right join ?
Question 23 :- Explain Full outer joins ?
Question 24 :- Explain Cross joins ?