Hire an SQL developer

Get your project done with professional freelancers
Post SQL project
Post SQL project

Hire an SQL developer

Get your project done with professional freelancers
Post SQL project
Microsoft SQL server is a structured query language. Any kind of business or marketing or sale companies would need to have a system to make communication with their databases. It means, they need to hire SQL developers to make this communication between databases. SQL coding can provide the ability to pull, edit, and add the data that are stored in databases. As an important SQL tip, SQL developer needs to know SQL languages have different variations, which means regarding relevant companies that they would get SQL coding job, based on company different data SQL databases, SQL expert would work with different SQL syntaxes. Another SQL tips and tricks are to know SQL only speaks to specific kinds of databases, called a relational database. Relational databases are also called Relational Database Management Systems (RDBMS) or SQL databases in other words. Historically, the most popular are MySQL, Microsoft SQL Server and the rest of that are Oracle Database and IBM DB2. One of the common mistakes of users is about SQL vs MYSQL statement. They would ask frequently: What is the difference between SQL and MYSQL? In a general meaning, we can say, SQL is a query language, while MySQL is a database management system. Also, NoSQL vs SQL is another misunderstanding status that might appear here. NoSQL databases have a dynamic schema for document type or unstructured data whereas SQL Databases have a well-designed predefined schema. Perfectlancer is proud to introduce you the best SQL developer and show you how you can manage or databases only by hiring SQL developer.
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Sakib A.

Sakib A.

N/A
Bangladesh
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A professional web-developer, expert in developing web sites using VueJs, Vuetify, VueX, Google Firebase, BootStrap, JavaScript, NodeJs, Laravel, async callback. Working methods and personality traits: • Dedicated mindset • Start working for you with a drop of a hat • Efficient and effective • Politeness, humble, understanding • Expert, creative, highly skilled Morals and core proficiency: • Confident of clients idea • Diligent and punctual approach to work • Ability to scale and thrive under pressure • Reorganize and tweak according to goal • Focused, optimized and passion driven Notable skills of my front-end qualifications: Vue / Vuex / Vuetify, React / Redux / Next.js: 2.5 years ✅ Vue.js Vuetify in depth knowledge ✅ Vuejs UI components - Vue Mobile Elements, Material Design in vue, ✅ Data Visualization using Vue.js ✅ CSS Frameworks: Flex Grid, SCSS/SASS/LESS/Stylus, less
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Hend A.

Hend A.

N/A
Egypt
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I am a database administrator and application support with 5+ years of experience in installing, supporting, implementing, backing up and tuning different databases ex(Oracle, MS SQL, DB2, MySql) on different operating systems ex (Windows, Linux, AIX). My expertise also includes supporting and implementing various applications ex (IBM Websphere Application Server, Crystal Reports, BI reports). I can provide complete services for your existing DB as well as install and configure your future applications. Also, I build solutions to suit your business needs. Furthermore, I am a professional article and blog writer. I write in many various technical fields. Also, I can help you writing full documentation as well as writing user tutorials and how things can be done in clear and easy steps. I am always interested in challenging projects whereby my extensive experience in the field of Information Technology and skills can be further developed and applied.
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Darko O.

Darko O.

N/A
Serbia
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I have 4+ years of experience in coding in different programming languages. I'm a final-year student at Faculty of electronic engineering in Nis, Serbia. I am an expert at object oriented programming languages such as C++, C# and Java. Also, I'm very experienced in web development and in Javascript and PHP. All work is done by ME so you can rest assured knowing that your work will not be outscored to someone else. I pride myself on providing the highest quality of work, and will never complete a project until the customer is 100% satisfied.
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Wale S.

Wale S.

N/A
Nigeria
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Most off-the-shelf CRM and ERP apps seldom do exactly what the user wants. This is because beyond the ubiquitous basics, every business/organisation/company has its own unique processes, nomenclature and methodologies. Ready-made apps are not designed with these peculiarities in mind. Consequently, users are forced to put up with various inadequacies and deficiencies. To remedy this, I design custom-built ERP solutions in Microsoft Access. And depending on the nature of the project and needs of the client, the actual data may be stored in Microsoft SQL Server. The location of the data could either be a local/on-premises installation or a cloud installation such as Microsoft Azure or Amazon AWS. User Interface and User Experience Design (UI/UX) is something many developers fail to do properly.
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Oleksii S.

Oleksii S.

N/A
Ukraine
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Having a Bachelor's Degree in Computer Science and 4 years of backend and frontend development I've decided to focus on creating javascript reactive web applications. Despite this, I have good skills in developing premium WordPress themes and plugins, can build custom or framework based PHP applications. Feel free to write if you want to cooperate. Have a nice day!
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Slobodan M.

Slobodan M.

N/A
Serbia
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I am senior software engineer with 10 years of experience in web and desktop app development. I have spent 4 years working as a freelancer and 6 years working as software developer in Microsoft, so I have both experience working on big enterprise applications and startup apps, working with both big and small teams, often working as only developer.
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Italo B.

Italo B.

N/A
Brazil
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B. Sc. in Science and Technology, B. Eng. Electrical Engineer and Master's Student in Informatics. Experienced in Python Development, ROS Development, HMI Prototyping, GUI/UI Prototyping (PyQt, Qt for Python, Qt), Robotics (Swarm Robotics, UAVs, AMRs), and Artificial Intelligence. Advanced knowledge with Python Development (2.7+/3+), MATLAB/SIMULINK, Cloud Computing, Artificial Intelligence, and Statistical & Mathematical Analysis (NumPy, Matplotlib, Dask). In 2016 I received an Introduction to Python for Data Science certification issued by Microsoft, and I’m actually conducting an IBM Professional Certification in the fields of Data Science. I also have good knowledge of SQL, Data Visualization (Plotly, Matplotlib, Tableau, PowerBi), and Machine Learning
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Soundarya R.

Soundarya R.

N/A
United States
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Currently working as a web development bootcamp teacher for Ruby and Rails && React.
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Vincent paul D.

Vincent paul D.

N/A
Canada
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Software developer with experience in full life-cycle development, including system analysis and design, development, deployment, documentation, implementation, and maintenance of application software based in windows-form environment and client/server architecture.
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Rakib M.

Rakib M.

N/A
Bangladesh
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I'm specialized in Website frontend and backend issues, Developing Wordpress themes, Wordpress Customization, Design/re-designing WIX etc. Besides them.. i have also some other skills like Photoshop work, designing logos, info-graphics, emails, flyers, social media designs etc. I have 3 years experience in the field and committed to deliver you high-quality work in the least possible turnaround time. I am a highly motivated individual with proven ability to lead a team or work individually when needed. I have worked on large scale, complex media designs comprised of both static & dynamic content in multiple languages. I am a creative, self-starter who provides strong attention to detail and design quality.
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Sravanthi K.

Sravanthi K.

N/A
India
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• Professional experience in database development using Microsoft SQL Server. • Experience in creating different types of SSRS reports like Table, Matrix, Drill Down, Drill Through, Sub Reports and Parameterized Reports from the scratch • Experience in the development of Crystal Reports • Experience on projects related to the conversion of Crystal reports to SSRS • Experience in development of Power BI reports, interactive dashboards, DAX measures, queries, publishing the reports to a workspace and creating subscriptions, data refresh schedules. • Experience in fast paced and deadline-oriented environments and production support. • Primary Skills: T-SQL, DAX Databases: MS SQL Server ETL Tools: SSIS Reporting Tools: SSRS, Crystal Reports, Power BI • Domains: Telecom, Real-estate, Investment Banking, Insurance
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Achraf S.

Achraf S.

N/A
Morocco
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JEE: Java Application Server, Weblogic, JBoss, Payara, Arquillian, Glassfish, JPA, EJB, JMS, RESTfull Webservices, REST API, Databases: Oracle, PL/SQL, PostgreSQL, NoSQL Web technologies: HTML, XML, CSS, Javascript, AngularJS, Angular 2, Angular 7, Angular 8, PhantomJS, CasperJS, Material Design, ReactJS, Cordova, Hybrid App-development, Ionic, Kendo UI Tools and methods : SCRUM, Kanban, CI/CD, JIRA, Confluence, Docker, GitHub, bitbucket, Jenkins, OpenShift Python, Php framework (Laravel)
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Sharon K.

Sharon K.

N/A
Netherlands
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Data Analysis, Marketing, SEO, User Research, Web Scraping, Text Mining, AI, Machine Learning, Survey / Questionnaire development and analysis, scientific research, web design
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Apoorva O.

Apoorva O.

N/A
Turkey
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I have worked for two years in an MNC, in Project Management, for a large telecommunication client based out of Singapore and Australia. I found this to be a very good opportunity to gain real-time work experience right after my under-graduation. Currently, I am pursuing my Master's in Economics and working on publishing two working papers . I have extensive knowledge of R, Stata, Microsoft Excel, PowerPoint, and Word. I can offer: -statistical analysis using R or Stata -report writing -research assistantship -Article Writing -Data Entry -Admin support -Customer Support
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Muaaz H.

Muaaz H.

N/A
Pakistan
$15/hr
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I am a full-stack developer with 4+ years of experience, possessing strong knowledge of web development and technologies and also mobile development. Able to quickly master new software libraries, frameworks, and tech stacks. My main working stack is ASP.NET, NodeJS for BackEnd and Angular, React, VueJS for FrontEnd, and for mobile development I mainly use Flutter.
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Muhammad N.

Muhammad N.

Pakistan
$5/hr
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Hi, Are you looking for a professional Web Developer? You are in the right place. I'm a feverish WordPress developer. I'm proficient in developing websites from magnificent front-end design. An ordinary guy with a passion for learning. We provide WordPress Development and HTML, PHP services. We create Business, portfolio, E-commerce, blogs, DropShipping, News, or non-profit Websites. Our goal is to provide the best solution to our clients in Websites Development. Please contact me if you have any queries!
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Thain B.

Thain B.

N/A
Canada
$70/hr
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I am Thain Breese, an expert-vetted freelancer for the last 5 years. As a full stack engineer, I am experienced in most of web development stacks including php, laravel, vue, angular, react, sql, nosql, etc. Also I am a self-starter and great communicator who can directly talk with clients, understand requirements and provide perfect solutions in timely manner.
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Md saiful I.

Md saiful I.

Bangladesh
$20/hr
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Description I specialize in WordPress development and local SEO. I build modern websites with elegant designs that are simple to navigate, responsive, and SEO friendly. What sets me apart from the other sellers is that I don't just deliver the gig but I am also more than willing to share my knowledge with you so that you can manage your new WordPress website all by yourself without the need to pay anyone. This applies to all my gigs. I love working with small business owners and I will do my best to see your business grow. Don't hesitate to reach out to me. About This Gig ### Please contact me Before Ordering ### Hi, I’m Saiful, ☆☆☆ a PROFESSIONAL WORDPRESS DEVELOPER ☆☆☆, designing gorgeous, 100% Responsive Custom WordPress Websites for over 5 years. We are enabling brands to exceed all online expectations through truly beautiful and high converting eCommerce and business websites since 2018. Platforms that we use are:  WordPress  E-commerce  Custom PHP  SEO  Digital Marketing Why Choose us: We study our client's business; choose the best platform and hand-pick the most suitable design according to our research! Features: • Highly personalized • Mobile-friendly design • Ecommerce functionality • User-friendly SEO • Social media integration • SSL certificate installation • And many more Friendly customer relationship is at the epicenter of our services along with 100% quality work and satisfaction. Place your Order Now or if you have any queries, feel free to contact us. FAQ What can I expect after getting your service? You will get the complete custom-designed store according to your brand and niche which focuses on 1- Branding elements, 2- All devices responsiveness (tablets and mobiles), 3- User-friendliness (so your buyers can buy easily), 4- Modern styling trends, 5- Banners styling, 6- And many more. If not Satisfy refunds the money.
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Tips to hire a SQL developer

SQL is known as an initial language that is responsible for organizing and managing data in a relational database management system (RDBMS). RDBMS is the basis and primary for SQL, and also, for the rest of modern database systems such as MS SQL Server, IBM DB2, Oracle, MySQL, and Microsoft Access. Hire a SQL developer would bring the possibility to get more knowledge about relational databases and also, work on your relevant projects.

Hire a SQL developer, as the most demanding database

According to DV-Engines report about the ranking of the database trend, the top five popular databases would be regarding Oracle, MySQL, Microsoft SQL Server, PostgreSQL, and MongoDB in order. Although SQL would be in second place in the survey, we shouldn’t forget the undeniable increase of rising in usage and popularity of the SQL, during the previous years.

What are the reasons that clients want to hire a SQL developer?

  • SQL is a universal database: SQL would be mentioned as the most commonly used database language. Hire a SQL developer also can bring the power to the most commonly used database engines such as MySQL, SQL Server, SQLite, and PostgreSQL
  • SQL is famous among the developers: SQL is mentioning in the first 5 popular programming languages according to the developers: JavaScript developer, SQL, C# developer, Java developer and PHP are the order of this list.
  • SQL is easy to learn: SQL was built on primary objects. This feature of SQL, would give the possibility to the general users and not even the professional SQL freelance developers, to get the data from it.
  • But before hiring a SQL freelance expert on a freelancing platform like Perfectlancer, it would be necessary to be more informed about the right definition of some statements which are relevant to SQL. Hire a SQL expert who would be present along your professional pathway.

    The key difference between SQL and MySQL:

    SQL has a direct role of assessment and manipulation of the data that are already stored in a database, but MySQL is a relational database management system and provides an organizational database for freelance developers.

    The key difference between SQL and NoSQL?

    The most of what you will see in SQL are the tables-based databases whereas NoSQL databases have more option to recommend to the users such as document-based databases, key-value pairs, graph databases.
    Hire a NoSQL developer with Perfectlancer, if you want to have document-based databases on your projects.

    The key difference between SQL and PostgreSQL?

    Hire a SQL developer can help for the e-commerce projects to provide different data warehousing solutions for their clients. There would be a mistake to compare the SQL with PostgreSQL. Because PostgreSQL is an advanced version of SQL which provides support to different functions of SQL like foreign keys, subqueries, triggers, and different user-defined types and functions.

    The key difference between SQL and SQL server?

    SQL Server is a database server that is provided by Microsoft. As an RDBMS tool, SQL and SQL server will execute the SQL statements. By hiring a database server, who would be known as a computer program, you will have the chance for database services to other programs or computers, as defined by the client-server model.
    After all, if you want to be sure that your SQL developer that you are hiring, would be the most professional one, you need to just ask some questions about their SQL commands

    The most important SQL commands

  • Select: It makes the command easier to read and understand.
  • SELECT * FROM table; e.g. SELECT freelancers FROM table 1
  • Where: This allows you to apply conditions to the select
  • SELECT age, name FROM freelancers WHERE age > 18;
  • Order: It is used to sort the results returned.
  • SELECT name, age FROM freelancers ORDER BY name ASC (ascending), age DESC (descending)
  • Join: It is used to join related data stored in one or more tables.
  • SELECT age, name, occupation FROM freelancers JOIN occupation;
  • Alias: This is used to temporarily rename a table.
  • SELECT age AS (Alias) person_age FROM freelancers;
  • Union: It allows to append rows to each other.
  • SELECT age, name FROM freelancers UNION SELECT age, name FROM freelancers;
  • Insert: It is for inserting data from a database.
  • INSERT INTO freelancers (name, age) VALUES ('Fra', 20);
  • Update: it's the command to change specific rows.
  • UPDATE people SET name = 'Fra', age = 25;
  • Upsert: It allows to update a record if it already exists.
  • INSERT INTO freelancers (name, age) VALUES ('Fra', 25) ON DUPLICATE KEY UPDATE age = 25;
  • Delete: It is used to remove records entirely
  • DELETE FROM freelancers;
  • Create Table: The create table command is used to create tables.
  • CREATE TABLE freelancers ( name TEXT, age, INTEGER, PRIMARY KEY (name) );
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