MSSQL DATABASE INTERVIEW QUESTIONS

What is the purpose of the IS NULL operator in MSSQL, and how do you use it?

How do you check for NULL values in a numeric column using the IS NULL operator in MSSQL?

Can you use the IS NULL operator with string columns in MSSQL?

How do you combine the IS NULL operator with the AND operator in MSSQL?

How do you combine the IS NULL operator with the OR operator in MSSQL?

How do you use the IS NULL operator in an UPDATE statement in MSSQL?

How do you use the IS NULL operator with subqueries in MSSQL?

How do you handle NULL values in JOIN conditions using the IS NULL operator in MSSQL?

How do you use the IS NULL operator with CASE statements in MSSQL?

Explain a scenario where using the IS NULL operator in MSSQL is crucial for a business application and describe how you would implement it.