SQL Interview Question 面试的时候发现会问一些SQL的基本问题,在此总结一下。 ProgramInterview/SQL这个网站上的问题还比较全。 1. Join type INNER JOIN: Returns all rows when there is at least one match in BOTH tables LEFT JOIN: Return all r
Solution of SQL Interview Question #3 Solution: SELECT department_name, AVG(salaries.salary) AS avg_salaries FROM employees JOIN salaries ON employees.employee_id = salaries.employee_id GROUP BY department_name HAVING AVG(salaries.salary) < 500; Note: You can solve this task using a subquery...
To get this, you need to use data from both available tables, and you need JOINs. In this case, it’s INNER JOIN because you’re interested only in tracks from both tables. Join the tables on the track name and date. The question asks you to output only tracks that were ranked first...
sql interview question doc
This repo is a collection of all the Interview Query's SQL interview question. - GitHub - nehanawar025/interview_query_SQL: This repo is a collection of all the Interview Query's SQL interview question.
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A candidate who needs some help along the way but communicates clearly can be even better than a candidate who breezes through the question. Understand what kind of problem it is. There are two types of problems: Coding. The interviewer wants to see you write clean, efficient code for a...
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I know, you guys are suffering my blah blah blah…. from the above two paragraphs, but for a golden question, you guys could suffer sometimes. Last week, I attended a walk-in interview for DBA position at Tech Mahindra Hyderabad, India. ...
–it is important that you are honest during your interview. but sometimes, being too honest prevents you from landing that job you want. candidates who walk into the interview and give an honest answer to this question, saying something like “i think my biggest weakness is not being a ...