MSSQL DATABASE INTERVIEW QUESTIONS

What is an INNER JOIN in MSSQL, and why is it used?

How do you perform an INNER JOIN between two tables in MSSQL?

What happens if there are no matching rows in an INNER JOIN in MSSQL?

How do you use multiple INNER JOINs to combine data from more than two tables in MSSQL?

How do you use table aliases in an INNER JOIN in MSSQL to simplify your query?

How do you filter the results of an INNER JOIN using the WHERE clause in MSSQL?

How do you handle NULL values when using INNER JOINs in MSSQL?

How do you use an INNER JOIN with aggregate functions in MSSQL?

How do you optimize performance when using INNER JOINs in MSSQL?

Explain a scenario where using an INNER JOIN is crucial for a business application in MSSQL and describe how you would implement it.