MySQL

DevSkiller prepares MySQL interview questions for recruiters who are looking to hire the best MySQL developers for their business. Our specialist IT experts design MySQL interview questions catered specifically to help with screening MySQL developers at junior, middle, and senior-level.

Datalogi
JUNIOR
Testede færdigheder
Varighed
45 minutter max.
Evaluering
Automatisk
Testoversigt

Opgave - Niveau: Let

SQL | Frimærkekatalog | De tre højeste priser - Vælg tre frimærker (pris og navn) med den højeste pris.

Programmeringsopgave - Niveau:

Python | Pandas | HTML table parser - Implementer en funktion til at konvertere HTML-tabellen til en CSV-fil.

DevOps
SENIOR
Testede færdigheder
Varighed
66 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om DevOps, Docker

DevOps-opgave - Niveau: Svært

DevOps | Master of Disaster Recovery (CentOS) - Gendanne data fra en ødelagt MariaDB/MySQL-database.

DevOps
SENIOR
Testede færdigheder
Varighed
66 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om DevOps, Docker

DevOps-opgave - Niveau: Svært

DevOps | Master of Disaster Recovery (Ubuntu) - Gendanne data fra en ødelagt MariaDB/MySQL-database.

MongoDB
MIDDLE
Testede færdigheder
Varighed
51 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om SQL, MongoDB, NoSQL

Huller i koden

vurdering af viden om MongoDB

Opgave - Niveau: Medium

SQL | Kundedata - Find alle de kunder, hvis for- og efternavn ikke er unikt i denne database, samt antallet af gange hvert for- og efternavnspar forekommer i databasen.

MongoDB
SENIOR
Testede færdigheder
Varighed
56 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om SQL, MongoDB, NoSQL

Huller i koden

vurdering af viden om MongoDB

Opgave - Niveau: svær

SQL | Udfyld sparsom tabel - Skriv en forespørgsel, der returnerer listen over alle brugere med oprettelsesdatoen og returnerer datoen fra den foregående ikke-nul-rækken for de poster, der er berørt af fejlen.

MongoDB
JUNIOR
Testede færdigheder
Varighed
27 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om SQL, MongoDB, NoSQL

Huller i koden

vurdering af viden om MongoDB, SQL

Opgave - Niveau: Let

SQL | Frimærkekatalog | CASE statement - Lav et select statement, hvormed du opdeler din frimærkesamling i 3 grupper.

Python
JUNIOR
Testede færdigheder
Varighed
54 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om SQL

Programmeringsopgave - Niveau:

Python | DNA Analyzer - Implementer en metode i Python, der genererer en statistisk DNA-rapport.

MIDDLE
Testede færdigheder
Varighed
40 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om SQL, MySQL

Opgave - Niveau: Medium

SQL | Kundedata - Find alle de kunder, hvis for- og efternavn ikke er unikt i denne database, samt antallet af gange hvert for- og efternavnspar forekommer i databasen.

SENIOR
Testede færdigheder
Varighed
45 minutter max.
Evaluering
Automatisk
Testoversigt

Spørgsmål efter valg

vurdering af viden om SQL

Opgave - Niveau: svær

SQL | Udfyld sparsom tabel - Skriv en forespørgsel, der returnerer listen over alle brugere med oprettelsesdatoen og returnerer datoen fra den foregående ikke-nul-rækken for de poster, der er berørt af fejlen.

DevSkiller uses RealLifeTestingTM to offer a unique approach to developer recruitment. This one-of-a-kind testing methodology uses a simulated reality in order to challenge developers with realistic tasks and offer a detailed insight into how well they perform. Quicken up your recruitment process with DevSkiller’s MySQL interview questions.

Recommended roles for MySQL interview questions

  • Junior MySQL developer
  • Middle MySQL developer
  • Senior MySQL developer
  • Softwareingeniør
  • SQL Server developer
  • Systems administrator
  • Quality assurance analyst
  • SQL Server Database Administrator

How our MySQL interview questions work

DevSkiller MySQL interview questions are powered by the RealLifeTestingTM metodologi. RealLifeTestingTM is based on the idea that to accurately assess a developer’s skills, you need to present them with challenges similar to the development work they actually do. Seems obvious right? Up until now, developer testing has focused on challenging developers by asking them to recite coding patterns and algorithms that they don’t use in their everyday work. Understandably this can be frustrating for developer candidates who don’t feel like they are given the chance to really demonstrate what they can do. Devskiller MySQL interview questions are changing this. We offer recruiters an opportunity to see how each candidate copes with realistic challenges that reflect their actual work environment. Candidates are assessed on their coding ability, their time-management, and their quick-thinking skills.

Key features of our MySQL interview questions

  • Test candidates’ coding skills, not just their academic knowledge
  • Observe MySQL interview questions in real-time
  • RealLifeTestingTM metodologi giver en større brugeroplevelse, hvor kandidaterne kan bruge deres egen IDE, klone til Git, køre enhedstests og få adgang til Stack Overflow/GitHub/Google til research
  • Flere værktøjer til bekæmpelse af plagiat for at sikre testens nøjagtighed
  • Automatiserede resultater, som ikke-tekniske fagfolk kan forstå
  • MySQL interview questions available for developers of all levels

Skills covered in our MySQL interview questions

  • CentOS
  • MariaDB
  • MySQL
  • SQL
  • Analyse af data
  • HSQLDB
  • MongoDB
  • MS SQL
  • NoSQL
  • Oracle
  • PostgreSQL
  • datavidenskab

What to look for in a MySQL developer

If you are hiring a MySQL developer you will need to know which special skills to look out for. SQL is a very popular Fourth Generation Programming Language (4GL). It is often also embedded in more general-purpose programming languages like Java, in order to access data from central databases.

The vast majority of MySQL performance-related issues can be solved by proper indexing, so it is vital your developer be skilled in this area.  Understanding where use of an index will be beneficial is essential for any good MySQL developer.

SQL has evolved a lot during the past decades so you will need someone who is up to date. Various features have been implemented to make the SQL language easier to manage. Set theory is important as it allows developers to perform bulk operations on entire data sets, directly in the database. You will want your developer to know about this. An understanding of window functions and CTE will also be helpful.

Build your own custom MySQL interview questions

Want to get more out of MySQL interview questions? The DevSkiller task wizard allows you to customize your MySQL interview questions and tailor them exactly how you like. If you want to change the language being tested, the length of each test, or even the allotted time given for each individual question, then this is all possible. There are loads of great features available to properly customize MySQL interview questions and suit them to complement your business.

Want proof that our MySQL interview questions work?

Knowing where to assign the finances of your company most effectively can be a big responsibility. It is understandable to want to have a little assurance. Here is what our past customers have had to say:

Victoria Cyczewska - Specialist i talentindkøb hos Stepstone Services

"Vi har nu et værktøj, som ikke kun gør det muligt for os at samarbejde om at lave tests til vurdering af de tekniske færdigheder, som vi har brug for at udvikle, men også at kommunikere internt og eksternt (med kandidater). Desuden er vores tekniske rekrutteringsproces nu mere struktureret. Som et eksempel bruger vi vores tekniske screeningsresultater som en samtalestarter under tekniske samtaler."

Olga Berger - Ledende rekrutteringsspecialist hos CodeValue

"DevSkiller er nem at bruge og venlig."

Magdalena Rogóż - Stedfortrædende marketingchef hos Kodilla

"Det er to gange mere omkostningseffektivt at bruge DevSkiller til at bedømme testene, samtidig med at vi giver vores studerende en meget bedre test og forbereder dem på fremtidige rekrutteringstests."

Ofte stillede spørgsmål

Hvad er RealLifeTestingTM?

RealLifeTestingTM is an opportunity to take recruitment screening to the next level. It is an advanced testing methodology that recreates a simulated version of a developer’s work environment and it forms the basis of all DevSkiller MySQL interview questions.

RealLifeTestingTM offers recruiters in-depth insight into a developer’s MySQL skills, one that is unattainable from traditional testing methods. It allows the accuracy of developer testing to be increased, without increasing the time needed for testing.

DevSkiller MySQL interview questions require candidates to build full project apps, add features to existing apps, and write code, just like they will be required to within the role. Candidates need to show their knowledge of resources like Stack Overflow, demonstrate their coding skills, and implement problem-solving solutions.

How are MySQL interview questions evaluated?

Devskiller testing is designed to make your recruitment process as simple as possible, which means we have automated our evaluation process to give you less to do. Once a candidate is finished with their test, the DevSkiller platform automatically gets to work on the results. Candidates are evaluated on the solutions they offer to problems, the amount of errors in their code, and the quality of the code. Results are formulated into an easy to understand report that even non-technical recruiters will be able to easily understand.

Hvordan tager ansøgerne en prøve?

The benefit of DevSkiller MySQL interview questions is that they can be accessed remotely and taken from anywhere in the world. This saves hours of time spent on in-house testing.

Candidates receive test invites via email and can start their assessments at a time convenient to them. If they like, the recruiter can observe tests being taken in real-time.

For the tests themselves, candidates have the option to use DevSkiller’s state of the art in-browser IDE. If they prefer they can use their favorite IDE and clone the project to GIT.

Throughout the tests candidates can also run unit tests to make sure their solutions work the way they are intended to.

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