MYSQL DATABASE INTERVIEW QUESTIONS

What is the purpose of string functions in MySQL?

How does the LENGTH function work in MySQL?

What is the CONCAT function and how is it used?

How does the SUBSTRING function work in MySQL?

Explain the use of the UPPER and LOWER functions.

What is the TRIM function and why is it important?

How does the REPLACE function work and when would you use it?

Explain the LOCATE function and its applications.

What is the LPAD and RPAD function used for in MySQL?

During a database certification exam, you are asked to describe how you would use string functions to format a phone number stored as a plain string into a standardized format. What approach would you take?