Write the sql for deleting duplicate rows from a table without using temporary space.
Database Developer Interview Questions
Database Developer Interview Questions
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.
Top Database Developer Interview Questions & How To Answer
Question 1
Question #1: How would you handle data loss during a migration?
How to answer
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
Question #2: When do you decide certain databases need upgrading?
How to answer
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
Question #3: How did you overcome challenges on a recent project?
How to answer
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.
5,609 database developer interview questions shared by candidates
The usual stuff - a number of technical questions, reasons for leaving then current job etc ...
When would you use an full outer join?
tell about import and export and sga
Q: In depth technical questions like PostgreSQL Architecture, Performance tuning, Features in postgresql 9.5, Explain 5-7 catalog tables, Explain 5-7 parameters in postgresql.conf
how you will let team to know that issue you worked on?
reverse a linked list, in place
what I do at Downtime.
General questions: Why Allianz Worldwide Partners? What is your hobbies? What projects have you done related to the position? Which tools do you use for data analysis? Give an example of projects that you have done during your studies or working experience Domain questions: What classifications algorithms have you applied in your analysis? What is difference between regression and machine learning algorithms? How to select distinct values in SQL and what alternative do R offer for this function?
Why did you choose your major
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