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Top 50 SQL Interview Question and Answer | most important and top SQL Interview questions |1hr watch



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In this video, we learned about top 50 SQL Interview Questions and answers which most important and very frequently asked in SQL Interviews so these questions are very important to prepare if you are going to SQL interviews.

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0:00 Top 10 SQL Interview Questions for Beginners
11:58 Top 10 SQL Interview Questions for Intermediate and Experienced
26:22 Top 10 SQL Interview Questions for Experienced
40:22 Top 10 SQL Interview Questions advance level
54:00 Top 10 SQL Interview Questions super advance level
01:09 TOP SQL Queries to practice for SQL Interview
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1- What are various types of commands in SQL? Give example.
2-What are the system databases in SQL Server?
3-What is the difference between DELETE and TRUNCATE statement?
4-Can we use functions inside stored procedure in SQL server?
5-what are indexes in SQL?
6-WHat are Views in SQL Server & why we use them?
7-What is an IDENTITY column in SQL ?
8-What are the authentication modes in SQL Server?
9-What is SQL Server Profiler?
10-What are Constraints in SQL Server?
11- What is Data Integrity?12- what is Difference Between SQL and PLSQL?
13- What are the functions in SQL & its Type?
14- What is a Subquery? What are its types?
15- What is a Join? List its different types.
16- What is difference between Primary Key and Unique key?
17- What is Union and Union all?
18- What is a Self-Join?
19- What is an Alias in SQL?
20-What is Difference between scalar, table-valued, and aggregate functions in SQL server?
21-What are the Magic Tables in SQL Server?
22-What are the temp tables and why we use them?
23-what is difference between stored procedure and function?
24-Why do we use CASE Statement in SQL? Give example
25-What is the difference between Scope_Identity(), Identity(), @@Identity, and Ident_Current()?
26-What is the difference between having and GROUP BY clause?
27-What is CTE in SQL and why we use them?
28-What is difference between View & CTE?
29-What are the Cursors in SQL?
30-What is the use of SET NOCOUNT ON/OFF statement?
31 What is the difference between "INNER JOIN" and "OUTER JOIN"?
32 What is Merge statement in SQL?
33 How to Insert Values to Identity Column in SQL Server?
34 What are the Query performance tuning techniques or Query Optimization techniques?
35 What is the difference between DROP and TRUNCATE statements?
36 Difference between Table variable and Temp Tables?
37 what is Difference between row number, rank and dense rank in SQL?
38 What is Table Scan, Index Scan and Index seek?
39 What are STUFF and REPLACE function?
40 How exceptions can be handled in SQL Server Programming?
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