MSSQL DATABASE INTERVIEW QUESTIONS

What is the purpose of the <> or != operator in MSSQL, and how do you use it?

What is the purpose of the '!=' operator in MSSQL, and how do you use it?

How do you use the '<>' operator with string values in MSSQL?

How do you combine the '<>' operator with the AND operator in MSSQL?

How do you combine the '!=' operator with the OR operator in MSSQL?

How do you use the '<>' operator with NULL values in MSSQL?

How do you use the '<>' operator with subqueries in MSSQL?

How do you use the '!=' operator with subqueries in MSSQL?

How do you optimize queries that use the '<>' and '!=' operators in MSSQL?

Explain a scenario where using the '<>' and '!=' operators in MSSQL is crucial for a business application and describe how you would implement it.