ORACLE DATABASE INTERVIEW QUESTIONS

What is the purpose of using an alias in SQL?

How do you create an alias for a column in Oracle?

Can you create an alias without using the AS keyword? Provide an example?

How do you use aliases with multiple columns in a query in Oracle?

How do you use aliases in combination with string concatenation in Oracle?

Can you use aliases in the ORDER BY clause in Oracle? Provide an example?

How do you use column aliases in a subquery in Oracle?

How do you handle aliases with arithmetic operations in Oracle?

How do you use aliases with aggregate functions in Oracle?

Explain a scenario where you need to use column aliases in a complex query and how you would implement it in Oracle?