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Database developer Interview Questions in United States
When you interview for a job as a database developer, expect the interviewer to assess how you compile a database system that meets the company's needs while also troubleshooting potential issues. Employers seek candidates who have strong problem-solving and organizational skills as well as possess a strong understanding of database systems.
613 Database Developer interview questions shared by candidates
Top Database Developer Interview Questions & How To Answer
Here are three top database developer interview questions and how to answer them:
Question #1: How would you handle data loss during a migration?
How to answer: While this is an issue all database developers seek to avoid, it's not always guaranteed that data remains secure when migration occurs. Answering this question lets the interviewer know how you handle challenges and save a company from certain data disasters. You could also mention steps the company could take to prevent data loss before the migration.
Question #2: When do you decide certain databases need upgrading?
How to answer: With this open-ended question, interviewers will examine your expertise in the industry. You should know specifics about certain programs and how often they need upgrading. Discuss how you work collaboratively and communicate efficiently with management as to when upgrades need to occur.
Question #3: How did you overcome challenges on a recent project?
How to answer: Even if you have the best plans for a database project, you might come across issues. Give examples highlighting your problem-solving skills and ability to handle a workload. The interviewer will learn how you operate under pressure and troubleshoot any issues.
Database Developer was asked...February 21, 2013
How do java deal with hash collision?
4 Answers↳
link them
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There's quite an extended back and forth in actual interviews for questions like this, so there's no real replacement for actual practice. The Prepfully Comscore Database Developer experts have actually worked in this role, so they're able to do a propermock, which really puts you through the paces and lets you assess your readiness level. prepfully.com/practice-interviews Less
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By chaining
Junior Database Developer was asked...March 12, 2015
Database Developer was asked...August 13, 2015
1.find second max salary hint using count
4 Answers↳
SELECT max(salary) FROM emptable WHERE salary < (SELECT max(salary) FROM emptable); Less
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SELECT max(salary) FROM emptable WHERE salary < (SELECT max(salary) FROM emptable); Less
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select max(Emp_Sal) from Employee a where 1 = ( select count(*) from Employee b where b.Emp_Sal > a.Emp_Sal) Less
SMTS - Database Developer was asked...May 18, 2019
Database Developer was asked...October 19, 2019
How much SQL do you know.
2 Answers↳
Tons, over 25 years.
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I answered that I used SQL for adding database data for programming a site.
Database Developer was asked...August 31, 2015
They gave me a sheet of queries to write and tasks to complete in a sample database that they had built including a few "if you have time" questions, and left me to do that on my own for about a half hour before reviewing what I had done.
2 Answers
Database Developer was asked...September 22, 2018
Junior Database Developer was asked...July 8, 2017
Database Developer was asked...July 9, 2013
Senior Database Developer was asked...September 1, 2014
How would you deal with a developer who writes bad code?
2 Answers↳
I personally would offer advice and point at similar solutions. I would not be confrontational and sort it out at release time if it was really bad. Perhaps I might want to inform my manager but this is down to level of competence. Nobody is ever wrong in my book, it all boils down to experience. Less
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Tell them "You see all those tasks we have outsourced to India? Do you want yours to be as well? Write better code" Writing readable code is essential, writing efficient code even more so. If a developer cannot do that properly, they need a good scare. Less