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Interview Questions and answers

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Explain the difference between INNER JOIN and LEFT JOIN in MySQL.
suresh answered 7 months ago • 
81 views1 answers0 votes
Explain the differences between INNER JOIN, LEFT JOIN, and RIGHT JOIN in MySQL and provide an example query for each.
suresh answered 7 months ago • 
64 views2 answers0 votes
What are the differences between INNER JOIN and LEFT JOIN in MySQL, and when would you use each one?
suresh answered 7 months ago • 
62 views1 answers0 votes
What is the difference between CHAR and VARCHAR data types in MySQL?
suresh answered 7 months ago • 
66 views1 answers0 votes
What is the difference between the CHAR and VARCHAR data types in MySQL?
suresh answered 7 months ago • 
67 views1 answers0 votes
How do you optimize a MySQL database for better performance?
suresh answered 7 months ago • 
73 views1 answers0 votes
What is the difference between AC and DC current in electrical engineering?
suresh answered 7 months ago • 
73 views2 answers0 votes
What are the different types of electrical relays and their applications in power systems?
suresh answered 7 months ago • 
73 views1 answers0 votes
What is the difference between AC and DC currents?
suresh answered 7 months ago • 
66 views1 answers0 votes
Can you explain the difference between AC and DC voltage and why they are used in different applications in electrical engineering?
suresh answered 7 months ago • 
85 views1 answers0 votes
What is the difference between AC and DC current?
suresh answered 7 months ago • 
76 views1 answers0 votes
What is the difference between alternator and generator in electrical engineering?
suresh answered 7 months ago • 
75 views1 answers0 votes
What is the difference between alternating current (AC) and direct current (DC) in electrical engineering, and in which applications would you use each type of current?
suresh answered 7 months ago • 
89 views1 answers0 votes
What are the key factors to consider when designing a high-voltage electrical distribution system for a large industrial facility?
suresh answered 7 months ago • 
65 views2 answers0 votes
What are the different types of electrical machines and their applications?
suresh answered 7 months ago • 
50 views1 answers0 votes
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