1 Essential Oracle SQL Interview Question *
Toptal sourced essential questions that the best Oracle SQL developers and engineers can answer. Driven from our community, we encourage experts to submit questions and offer feedback.
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Interview Questions
What is wrong with the below statement?
select employee_id emp, last_name emp_name, hire_date date
from employees;
date
has been used as an alias to the hire_date
column, but we cannot use any Oracle reserved keyword as an alias. If want to use it, we have to mention it in quotation marks:
select employee_id emp, last_name emp_name, hire_date "date"
from employees;
There is more to interviewing than tricky technical questions, so these are intended merely as a guide. Not every “A” candidate worth hiring will be able to answer them all, nor does answering them all guarantee an “A” candidate. At the end of the day, hiring remains an art, a science — and a lot of work.
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Submitted questions and answers are subject to review and editing, and may or may not be selected for posting, at the sole discretion of Toptal, LLC.
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