Most Important SQL Interview Que And Ans🔥(Must Watch Before Interview)- 2023 #sqlinterviewquestions
4.9 هزار بار بازدید -
10 ماه پیش
-
#sql
#sql #sqlinterviewquestionsandanswers #sqlinterviewquestions
Hey, Everyone welcome back. So, today in this video we will learn about the "Most Commonly Asked SQL Interview Questions and Answers [ TOP 100]". Must watch before going to the interview.
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/ycyha359
✅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. 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/stored procedure/trigger/transaction?
23. What is a deadlock?
24. CHAR Vs VARCHAR data types?
25. Function Vs Stored procedure?
26. GROUP BY Vs HAVING clauses
27. Database Vs Schema
28. What is a data warehouse?
29. OLTP and OLAP?
30. What is a correlated subquery?
31. Temporary table Vs Table variable?
32. Difference between UNION and JOIN?
33. What is the difference between WHERE and HAVING clauses?
34. Database Vs data warehouse?
35. Primary key Vs candidate key?
36. Schema Vs 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. Purpose of the GROUP BYHAVING clause?
48. Purpose of the DISTINCT keyword?
51. Purpose of the BETWEEN/EXISTS/ operator/IN /LIKE?
53. Purpose of the COUNT()/SUM()/ MAX()/MIN()/GROUP_CONCAT()function?
59. Purpose of the JOIN keyword?
60. What is a self-referencing table?
61. UNION Vs UNION ALL?
62. Purpose of the ROW_NUMBER() /LAG()/LEAD()/COALESCE()function?
68. Purpose of the CASE statement?
69. Purpose of the TRUNCATE TABLE statement?
70. Purpose of the CONSTRAINT keyword?
71. Purpose of the PRIMARY KEY/FOREIGN KEY constraint?
73. Purpose of the INDEX keyword?
74. Purpose of the CASCADE keyword in a FOREIGN KEY constraint?
75. Purpose of the UPDATE /DELETE /COMMIT /ROLLBACK /SAVEPOINT /SAVEPOINT.
80. Purpose of the CONSTRAINT keyword in the ALTER TABLE statement?
81. Purpose of the DISTINCT keyword in the SELECT statement?
82. Purpose of the AS keyword in the SELECT statement?
83. Purpose of the ORDER BY/GROUP BY clause in the SELECT statement?
85. What is the purpose of the HAVING/ LIMIT/OFFSET clause in the SELECT statement?
88. Purpose of the JOIN keyword in the SELECT statement?
89. Purpose of the INNER JOIN/LEFT JOIN/RIGHT JOIN/FULL OUTER JOIN?
93. Purpose of the UNION/UNION ALL/ LIKE operator?
96. Purpose of the IN/EXISTS/GROUP BY operator in the WHERE clause?
99. Purpose of the ORDER BY clause in the SELECT statement?
100. Purpose of the DISTINCT keyword in the SELECT statement?
101. TOP 10 Important SQL Query
-------------------------------------------
👋 Additional resources
-------------------------------------------
Top 100 Most Commonly Asked SQL Interview Questions and Answers [ Part-1 ] #sql
Top 100 Most Commonly Asked SQL Inter...
Top 100 Most Commonly Asked SQL Interview Questions and Answers [ Part-2 ] #sql
Top 100 Most Commonly Asked SQL Inter...
Commonly Asked SQL Interview Que And Ans (Must Watch Before Interview)
Most Important SQL Interview Que And ...
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...
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...
🔔 Subscribe to my YouTube channel:-
https://www.seevid.ir/fa/result?ytch=UCWfz...
Social Media Link
--------------------------------
LinkedIn:- linkedin.com/in/deepan-kumar-patel-777591202
Facebook:- Facebook: dipan.patel...
---------------------------------------------------------------------------------------------------------
Thanks for watching...
"Milestone Creator"
Hey, Everyone welcome back. So, today in this video we will learn about the "Most Commonly Asked SQL Interview Questions and Answers [ TOP 100]". Must watch before going to the interview.
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/ycyha359
✅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. 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/stored procedure/trigger/transaction?
23. What is a deadlock?
24. CHAR Vs VARCHAR data types?
25. Function Vs Stored procedure?
26. GROUP BY Vs HAVING clauses
27. Database Vs Schema
28. What is a data warehouse?
29. OLTP and OLAP?
30. What is a correlated subquery?
31. Temporary table Vs Table variable?
32. Difference between UNION and JOIN?
33. What is the difference between WHERE and HAVING clauses?
34. Database Vs data warehouse?
35. Primary key Vs candidate key?
36. Schema Vs 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. Purpose of the GROUP BYHAVING clause?
48. Purpose of the DISTINCT keyword?
51. Purpose of the BETWEEN/EXISTS/ operator/IN /LIKE?
53. Purpose of the COUNT()/SUM()/ MAX()/MIN()/GROUP_CONCAT()function?
59. Purpose of the JOIN keyword?
60. What is a self-referencing table?
61. UNION Vs UNION ALL?
62. Purpose of the ROW_NUMBER() /LAG()/LEAD()/COALESCE()function?
68. Purpose of the CASE statement?
69. Purpose of the TRUNCATE TABLE statement?
70. Purpose of the CONSTRAINT keyword?
71. Purpose of the PRIMARY KEY/FOREIGN KEY constraint?
73. Purpose of the INDEX keyword?
74. Purpose of the CASCADE keyword in a FOREIGN KEY constraint?
75. Purpose of the UPDATE /DELETE /COMMIT /ROLLBACK /SAVEPOINT /SAVEPOINT.
80. Purpose of the CONSTRAINT keyword in the ALTER TABLE statement?
81. Purpose of the DISTINCT keyword in the SELECT statement?
82. Purpose of the AS keyword in the SELECT statement?
83. Purpose of the ORDER BY/GROUP BY clause in the SELECT statement?
85. What is the purpose of the HAVING/ LIMIT/OFFSET clause in the SELECT statement?
88. Purpose of the JOIN keyword in the SELECT statement?
89. Purpose of the INNER JOIN/LEFT JOIN/RIGHT JOIN/FULL OUTER JOIN?
93. Purpose of the UNION/UNION ALL/ LIKE operator?
96. Purpose of the IN/EXISTS/GROUP BY operator in the WHERE clause?
99. Purpose of the ORDER BY clause in the SELECT statement?
100. Purpose of the DISTINCT keyword in the SELECT statement?
101. TOP 10 Important SQL Query
-------------------------------------------
👋 Additional resources
-------------------------------------------
Top 100 Most Commonly Asked SQL Interview Questions and Answers [ Part-1 ] #sql
Top 100 Most Commonly Asked SQL Inter...
Top 100 Most Commonly Asked SQL Interview Questions and Answers [ Part-2 ] #sql
Top 100 Most Commonly Asked SQL Inter...
Commonly Asked SQL Interview Que And Ans (Must Watch Before Interview)
Most Important SQL Interview Que And ...
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...
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...
🔔 Subscribe to my YouTube channel:-
https://www.seevid.ir/fa/result?ytch=UCWfz...
Social Media Link
--------------------------------
LinkedIn:- linkedin.com/in/deepan-kumar-patel-777591202
Facebook:- Facebook: dipan.patel...
---------------------------------------------------------------------------------------------------------
Thanks for watching...
"Milestone Creator"
10 ماه پیش
در تاریخ 1402/07/02 منتشر شده
است.
4,938
بـار بازدید شده