How to Answer: What are user-defined database functions, and when should you go for them?
Advice and answer examples written specifically for a Database Administrator job interview.
23. What are user-defined database functions, and when should you go for them?
How to Answer
You may have already recognized this as another technical question. As a database administrator, you can anticipate a great many technical questions during the interview. The other type of questions you will be asked are operational questions, which help the interviewer to understand how you go about doing your job. Remember to keep your answer to both types of questions brief and to the point. You should anticipate follow-up questions any time you provide an answer.
Written by William Swansen on October 9th, 2020
Answer Example
"User-defined database functions are created to perform a specific task designated by the programmer. They are used as a mechanism for extending the functionality of the database. The function is evaluated in a standard query language (SQL) statement. An example is creating a function that will take an array of elements and return the sum for all of them."
Written by William Swansen on October 9th, 2020