Mettl’s assessments have been the biggest filter in our recruitment process. Their platform has helped us reach out to a higher volume our applicant numbers. Mettl constantly keeps innovating on their products and tries to introduce a new aspect to everything.
An IBM Marketing Cloud study suggests that 90% of the data on the internet has been created since 2016. However, by 2025, it is estimated that 463 exabytes of data will be generated daily, globally.
Our dependency on digital means is growing with websites, social media, and a visible growth in the electronic payments systems. Businesses are migrating towards a fast-paced environment by implementing futuristic technologies that structure and manage their data safely. This valuable resource ensures an informed decision-making cycle that supplements a competitive edge. Users, too, are evolving with easy access to innovative technologies, seeking real-time support for their decision-making processes.
Though it seems that data is wonderfully transforming our lives (such as the WWW), creating and managing it online is critical. Data assists businesses in finding relevant relationships that are vital to an organization’s growth. It could be anything from a sales inventory, an employee list, or something that needs to be tracked. It is extensive and exhaustive. Therefore, your regular pen drive or hard disk can not store it. It must be stored perpetually on a server in a readily available format. It has to be leveraged and assessed seamlessly but should also be safe from a breach, piracy, and tampering.
The database management system is a software application used to conveniently access, create, retrieve, and update data from various databases. It is akin to an interface between the database and its end users. It maintains optimal performance, efficiency, privacy, and security while tackling challenges that hamper the fluidity of businesses. The database management system is integral to backend development.
When you are banking online, keeping an account of your monthly payments, or managing travel reservations, notice the real-time updates on the page carefully. The database management system gives commands to the system upon request to load, retrieve, or modify the existing data. Without you having to reload or refresh the page, the system is continually updating everything for you to see in real-time.
A database management system can be easily integrated into programming languages such as Java and Python to enable connection with any application or website that is accessible to multiple users.
A database developer (DBD) is tasked with creating and implementing computer databases after analyzing the company’s data needs. Using expansive knowledge of database administration software, programming languages, architectures, and much more, database developers are continually modifying and editing databases, designing and developing new databases and troubleshooting issues. They are often found working with the development team.
A database developer works with generic and proprietary APIs to build applications that interact with a database management system and maintain the quality of the data and information. With skilled training in key technologies and development languages, their responsibilities also include managing the performance, integrity, and security of databases across devices.
With a variety of database management systems available in the market today (as explained below), a database developer has to be proficient and updated with the industry’s latest trends. From changes in regulations, technology enhancements to forecasting emerging products — the developer should be able to implement new or better data strategies that positively impact existing operations.
It is vital to mention that a database developer’s skills and technical expertise are desirable to many organizations, whether the IT sector, private corporations, healthcare facilities, financial institutions, insurance companies, and universities. As long as data-intensive needs exist, the need for hiring a database developer to refine data and foster organizational growth will remain.
Database administrators (DBAs) ensure that the company’s data is safely stored, readily available, easily accessible and protected from a breach, loss and corruption. A DBA ensures an uninterrupted workflow for all stakeholders while ensuring maximum service through constant maintenance to provide quality data analysis. They work closely with information systems managers.
With data innovation such as big data and big data storage at play, there is a growing need for data scientists to sort complex data. Their industry knowledge and deep understanding of machine learning enable them to solve business-related problems using data-driven techniques. A data scientist’s analytical approach explores solutions to significant futuristic issues, from structuring extensive data to determining trends and patterns that scale businesses.
Since the inception of the database management system, the world has seen and used various databases. In the past few years, SQL, NoSQL, and NewSQL have remained most relevant and used, and are expected to remain so in the foreseeable future.
Relationship Database (formatted and structured data) is accessed and managed using only one language called SQL- Structured Query Language. It is used by corporate behemoths, such as Accenture, Microsoft and IBM, etc.
Two other database concepts that have, of late, been integral to modern applications such as mobile, web, and gaming are NoSQL and NewSQL.
NoSQL comprises all those databases that are non-relational like hierarchy, network, and object-oriented databases. It interacts with several different forms of stored data that can be structured, semi-structured, or even unstructured.
It is used by the likes of NetFlix, LinkedIn, and Twitter.
NewSQL is a hybrid approach to managing humongous data. You need the best of both SQL and NoSQL to build a perfect solution. Companies dealing with Big Data and IoT often tend to use this new database.
As of March 2020, there are more than 300 types of database management system software on the market and the numbers make sense when we look at the zettabytes and yottabytes of data being churned. Hence, choosing the right database management system software to meet your business requirement is vital but overwhelming. Data storage requirements tend to vary from company to company, with core specifications centered around the cost, capacity, scalability, accessibility for immediate consumption, and useability for future reference. This makes hiring a professional database developer even more critical. But how does one evaluate these applicants on their proficiency when the requirements are heterogeneous?
Finding someone with experience and skills set can be challenging, especially if a hiring manager has a non-technical background. Isn’t it daunting to find answers to tech-specific questions such as what encapsulates a database developer’s role? Where can I find a database developer? Do database developers code? How to hire a database developer? And many more. The questions and the search could be never-ending.
Hence, Mercer | Mettl’s automated online database developer assessment tests simplify your technical hiring process quickly. A database developer assessment test identifies potential candidates, evaluates them on various skills set and provides a comprehensive summary of their knowledge. It is in tandem with the company’s vision of a database developer role.
We also provide diverse database developer assessment and testing tools and test cases, such as question types, including MCQs, case study simulators, coding simulators, etc. With data-driven evaluation methodology, intuitive user interface and customized reports, hire a database developer through campus drives or resumes within stipulated timelines.
The quality and coverage of our technical questions are unmatched as we cover a vast array of roles and skills. A rich repository of 100,000+ Technical Questions for 300+ Skills helps test a coder’s competency at every level comprehensively. You can choose from a set of readily-available standardized tests, such as the SQL Server Database Administrator Test, Data Engineer’s test, Java MySQL Assessment test, or Python MYSQL Developer assessment test, to name a few from our vast library of Programming Assessments. With a ready-to-use pre-build test set, instantaneously assessing a coder’s skill helps save precious time.
In case you are looking for something specific, we get our team of experts to build a customized assessment that you can’t find anywhere. These tailor-made pre-hiring assessments are an ideal filtration process to explore candidates’ desired skill sets without bias, not only for IQ skills but for coding skills as well. Tailored solutions matching organizational objectives with features and applications are offered at every level to assist you in hiring an ideal database developer.
Mercer | Mettl offers a comprehensive list of simulators to evaluate a coder’s hands-on experience and the ability for the desired role. It enables hirers to provide a real project to a coder from a specific domain of software development and evaluate their experience and ability to solve a problem in any desired programming language. These real-world challenges provide a real understanding of a candidate’s project building capabilities.
This comprehensive simulator environment is available for
Evaluates candidates’ experience and capability to solve a problem in any desired programming language
Evaluates candidates’ capability to write correct and optimized SQL queries
Evaluates candidates’ capability to implement web designs and solve problems using frontend technologies
Evaluates candidates’ analytical & statistical acumen for data analytics roles
Evaluates candidates’ capability to develop console-based applications
These simulators are highly-scalable, auto-graded and designed to test students’ and working professionals’ coding skills. Our simulators support all popular technologies and enable creating language-agnostic questions. A complete auto-graded evaluation report provides a detailed code journey with a plagiarism detector.
If you have an advanced Requirement to assess candidates in a project-based coding environment, Mercer | Mettl is introducing a first-of-its-kind all-in-one coding assessment platform to assess candidates on project-based, real-world tasks. This highly sophisticated and customizable tool with real-time, insightful reports and auto-evaluation of the code provides best-in-class integrated development environments (IDE) and programming tools to evaluate their proficiency level. It caters to all major programming roles and supports the most diverse set of technologies. Major roles include:
Data is the key to every business. The voluminous transformation of our data creation and management over the last few decades has been intriguing. There was a time when the existence of computers led to the creation of various software that enabled storage and accessing static data. The focus was on minimizing expenses, and there was minimal interest in newer technologies due to a high-risk capacity. As our need for optimal performance and scale developed, so did the heterogeneity of data, which led to the redundancy of traditional database management systems.
The focus has now shifted to prowess, and the creation of multiple languages and software can help businesses manipulate them. As we started collecting data for everything- weather reports, clients’ files, user behavior, stock inventory, the perception and purpose of gathering them were modified. There was a sudden uptick among customers for instant responses to the most complex of queries, which made businesses realize that data could be measured to gain lateral information. Hence, companies began looking for options that could revolutionize their data management. Everyone wanted a way to secure their data, enable performance advantages, incur lower costs, and have improved security, as data was now the key to measuring success, understanding consumer metrics, and predicting opportunities. How can one not leverage it in the best way possible? With the dawn of digital dependency, a few years ago, the future of database management shifted to the cloud, with the convergence of the economics of speed and storage.
Now with the onset of Big Data, BlockChain, and the Internet of Things, one can only imagine the volumes of data being generated by companies. As our demand and supply for connectivity rise continually, the connected devices alone are expected to create about 847 Zettabytes of data per year by 2021. It may sound hypothetical, but it is a fact. According to global industry consultant Boston Consulting Group, automotive data monetization, including connectivity, will grow to $28 billion in business by 2035 from $1 billion today.
Will digital data management become an arduous task? Or will the creation of disruptive advantages create a more prominent noise sufficing every possible whim? Some conversations say quantum supremacy and machine learning are expected to take over as the ‘next big thing.’ With algorithms and AI leaping forward, there’ll be a significant boost to the future of database management systems; the entire bandwidth will change. There is a possibility that these technologies could completely revolutionize all areas of database management. Keep an eye out!
Originally published April 29 2020, Updated December 17 2020
Shirisha has been helping countless brands gain traction with her content. Her deep understanding of the education sector and sound knowledge of technical skills have helped her structure the most creative solutions for key stakeholders. Shirisha has also ghosted pieces for several industry honcho’s successfully published both online and offline. When she's not keeping up with the world, you're sure to find her catching up on bollywood stories or gramming for fun.
Hiring a coder requires HRs to go beyond conventional hiring practices and assess the candidate on both knowledge and hands-on skills. A holistic suite of assessments and simulators, used in conjunction, can simplify the technical hiring process and better evaluate programmers and developers.