Find the right SQL interview questions

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Patrick RyderUnited States
Pat has over a dozen years of experience developing applications on the .NET platform, including having been part of the development team at Microsoft which created the platform itself. He also develops for Windows native API (Win32/COM), he communicates extremely well, and he has worked in teams of all sizes.
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SQLT-SQLC++C#.NETASP.NET MVCASP.NETMicrosoft Visual StudioWindows ServerWindowsSQL Server
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Mike HarrisUnited States
Mike is an experienced freelance Ruby developer who also has real world experience in JavaScript, C#, C++, Java, and SQL. He has more than 10 years of experience in a wide variety of environments, including IT consulting, in-house web development/data architecture, and freelance contracting.
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SQLRubyCoffeeScriptJavaScriptRuby on RailsjQueryGitGitHubMicrosoft ExcelAgile Software Development
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Eric W. GreeneUnited States
Eric loves to write code in a high-paced and challenging environment with an emphasis on using best practices to develop high quality software that meets project requirements, budget, and schedule. He enjoys learning new technologies and sharing findings with his colleagues.
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SQLCSS3JavaScriptHTML5BootstrapAngularJSjQueryMicrosoft Certified Professional Developer for ASP.NET 3.5Microsoft Certified Solutions Developer .NET 4.5 Web Applications Developer
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Scott FerrettGermany
Scott is a freelance architect and lead developer with extensive experience in C++, C#, and SQL. He has contributed to the ANSI standards for both C++ and SQL. He excels with problems that are best solved with multiple cooperative processes.
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Mike StankavichUnited States
Mike is a senior data engineer and freelance architect experienced across the development stack. He has extensive cloud and infrastructure experience, with multiple certifications from Microsoft, ISC2, Powersoft, and more. He currently builds data back-ends for web apps at scale on the RDBMS or NoSQL platforms.
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Lucas Tomas Casas ArreguiArgentina
Lucas is a strong, experienced developer and architect who has worked on a wide range of solutions including solid state, windowed, web MVC, and single page apps. He has developed and integrated solutions for manufacturing, VoIP, ad publishing, consumer experience, and hotel searching.
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SQLVisual Basic 6 (VB6)PHPMicrosoft Access
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Jake VargheseUnited States
As an architect, Jake understands the process of solving complex problems that plague enterprise and medium size businesses. He is a full-stack problem solver--he can build entire apps from scratch or he can optimize an existing app already in the field.
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Richard RozsaNetherlands
Richard Rozsa offers a vision of data as a self formatting entity. For more than 30 years, he's delivered top quality technical architecture, programming, testing and solutions for complex problems--on-time and within budget. He's extremely flexible and able to integrate as a standalone freelancer or within teams.
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Gustav StiegerAustralia
Gustav is a top engineer and programmer with 20 years of experience with all levels of software and architecture. A creative abstract and theoretical thinker with the ability to turn ideas into re-usable modules and solutions, Gustav has worked at all levels of participation, from contractor to technical lead.
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Ramiro Agustin PalaciosArgentina
Ramiro is a PMP Certified ScrumMaster and experienced systems engineer with over ten years of software development experience in Microsoft environments. He's self-taught, self-motivated, and proactive. With an innovative attitude, he is committed to the use of best practices to produce high quality applications.
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SQLC#Visual Basic 6 (VB6)VB.NETASP.NETVisual Studio 2010Agile Software DevelopmentWindowsSQL Server 2008SQL Server
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SQL is a declarative programming language that is used in many relational databases. The specific syntax of SQL may vary a little from database to database, but the relevant concepts are mostly the same. However, there is a difference between knowing these concepts of SQL and actually being able to write sound, efficient, and proper SQL statements ensuring stability, reliability, and performance of databases.

If you are specifically looking for a MySQL database administrator, please refer to our MySQL Database Administrator Job Description Template.

Finding a great SQL developer starts with a perfect job ad. This article will provide a job description and ad template that you can tune to your needs while searching for the best SQL developer for your team.

SQL Developer - Job Description and Ad Template

Company Introduction

{{Write a short and catchy paragraph about your company. Make sure to provide information about the company’s culture, perks, and benefits. Mention office hours, remote working possibilities, and everything else you think makes your company interesting.}}

Job Description

We are looking for a SQL developer who will be responsible for designing databases and ensuring their stability, reliability, and performance. You will also work other developers optimizing in-application SQL statements as necessary, and establishing best practices. You will help solve all database usage issues and come up with ideas and advice that can help avoid such problems in the future.

Responsibilities

  • Help write and optimize in-application SQL statements
  • Ensure performance, security, and availability of databases
  • Prepare documentations and specifications
  • Handle common database procedures such as upgrade, backup, recovery, migration, etc.
  • Profile server resource usage, and optimize and tweak as necessary
  • Collaborate with other team members and stakeholders
  • {{Add other responsibilities here that are relevant}}

Skills and Qualifications

  • Strong proficiency with SQL and its variation among popular databases
  • Experience with some of the modern relational databases
  • Skilled at optimizing large complicated SQL statements
  • Knowledge of best practices when dealing with relational databases
  • Capable of configuring popular database engines and orchestrating clusters as necessary
  • Ability to plan resource requirements from high level specifications
  • Capable of troubleshooting common database issues
  • Familiar with tools that can aid with profiling server resource usage and optimizing it
  • Proficient understanding of code versioning tools such as {{Git / Mercurial / SVN}}
  • {{Make sure to mention other frameworks, libraries, or any other technology related to your development stack}}
  • {{List education level or certification you require}}
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