PostgreSQL Online Test
15 questions total, 40 minutes maximum, for mid-level programmers
Programming test includes:
PostgreSQL - 15 Questions
- Joins, Queries
- Grouping, Aggregate Functions, HAVING Clause
- Subqueries, EXISTS, IN Operators
- Miscellaneous: Ranking Functions, Foreign Key, UNION Operator, NULLs
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Branded PDF Report
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Reports are provided in PDF format, making them easy to read, share and print.
1. Does every candidate have to answer the same questions?
Yes. PostgreSQL test consists of the same questions for every candidate.
In order to properly compare candidates, they need to answer questions of the same difficulty level, and different questions always mean different difficulty levels.
2. How should I interpret the exam scores?
First of all, you need to keep in mind one very important thing:
The purpose of this PostgreSQL online test is not to help you find the best developers.
Its purpose is to help you avoid the worst ones.
For example, you have 5 candidates who get scores of 35, 45, 60, 65, and 80, based on a maximum possible score of 100.
3. Coding Test vs. Quiz
The test is presented in a multiple-choice, or quiz, format, rather than requiring test takers to write code.
4. What skill level is the test for?
5. What about junior and senior level developers?
The test can also be used to test junior programmers, but you should reduce your acceptance score drastically to compensate.
Likewise, you can use it to test senior SQL developers as well, with an increased acceptance score.
Some will argue that it's pointless to judge senior developers based on a test meant for mid-level developers. This is generally true if you're looking for specific skills in a candidate rather than a broad base of expertise.
But at the same time, anyone can claim to be a senior developer on their resume. If you're concerned that candidates might be overstating their knowledge and accomplishments, this PostgreSQL skills test is a good way to determine which ones can actually deliver what they promise.
Made by Professionals
Database Engineer at SurveyMonkey working in the Bay Area, CA
Senior Database Developer with huge experience, working at Logex B.V.