Freelancer logo
How It Works
Browse Jobs
Log In
Sign Up
Post a Project
Find Jobs
Find Freelancers
Get Ideas
Resources

Hire expert
SQL Engineers
for any job

Millions of people use Freelancer.com to turn their ideas into reality.
Hire a top SQL Engineer now
Trusted by leading brands and startups
NASA IconDeloitte IconNovo Nordisk IconFacebook IconAirbus IconAmazon Icon
Skill icon

What is SQL?

SQL helps save time and energy by managing databases and data in general, and has proven essential to certain sectors such as online shopping.
Skill description icon

Hire SQL Engineers

SQL engineers can come up with all sorts of solutions to your data management issues. Find one today at Freelancer.com to help you with your specific problems!

Showcased work from our freelancers

Get some inspiration from SQL projects
Game.
Discover More
Game.
$50 USD in 9 days.
Package Design.
Discover More
Package Design.
$110 USD in 4 days.
Music Video.
Discover More
Music Video.
$300 USD in 12 days.
Interior Design.
Discover More
Interior Design.
$269 USD in 14 days.
Poster.
Discover More
Poster.
$100 USD in 3 days.
Flyer Design.
Discover More
Flyer Design.
$15 USD in 1 day.
Concept Design.
Discover More
Concept Design.
$100 USD in 10 days.
Socials Post.
Discover More
Socials Post.
$50 USD in 6 days.
Discover more work from freelancers See more work

As featured in

VentureBeat Logo

The world's largest marketplace

Millions of users, from small businesses to large enterprises, entrepreneurs to startups, use Freelancer to turn their ideas into reality.
55.9M
55.9M
Registered Users
20.7M
20.7M
Total Jobs Posted

How to hire a great freelance SQL Engineer

Structured query language, more widely recognized as SQL, is a special purpose programming language and a standard language for relational database management systems. SQL is effective in communicating with and managing data held in a relational database. A majority of database products available are based on SQL programming language, although customization of the standard language using proprietary extensions is common. Oracle, Sybase, Microsoft SQL Server, Access and many other leading databases use SQL.
SQL is primarily a declarative language, a non-imperative programming approach where appropriate results are identified as opposed to explicit commands that must be conducted. However, SQL does also include some procedural elements. SQL incorporates three different language varieties, data definition, data manipulation and data control all contribute to SQL outcomes.  
Donald D Chamberlin and Raymond F Boyce are credited with the development of SQL in the early 1970s. Experts in relational algebra and tuple relational calculus, the pair created the programming type to communicate with, retrieve and manipulate data from IBM's original database. They termed the language SEQUEL originally, referring to structured English query language, although a trademark conflict with a UK company saw it later changed to SQL.
Oracle, at the time named Relational Software, observed the concepts of Chamberlin and Boyce and saw a widespread application for the programming language. They developed their alternate version of SQL holding aspirations of securing business with US Government agencies. They began selling SQL RDBMS in June 1979.
The American National Standards Institute (ANSI) and International Organization for Standardisation (ISO) confirmed SQL as a standard in 1986 and 1987 respectively. Since then SQL has continued to evolve to include a larger set of features.
SQL programming language includes several language elements. Clauses are integral components of statements and queries. Expressions combine values operators and SQL functions. Predicates are used to limit the effect of statements and queries or change program flow. A query is an inquiry into the database using the SELECT statement. Statements control transactions, connections, sessions, perform diagnostics and more.
If you are searching for an SQL programmer qualified in computer science, management information systems or information science, or you require a professional employee adept at logical thinking, problem-solving, with a detail-oriented approach and strong programming skills, you should consider the services of a freelancer.
Freelancer.com is a crowdsourcing marketplace and home to thousands of computer programming specialists well versed in SQL programming language. Freelancer.com allows potential employers to post jobs or projects that freelancers can bid for selection. Freelancer is free to join, post a project and receive bids. Once you've posted a project, you'll receive bids within minutes. Employers can review a freelancer’s portfolio and discuss project requirements directly before making a decision on the perfect candidate. With over 19 million users, you'll be sure to find the perfect match for your project.
With Freelancer, you get access to the best talent from around the world, and at an affordable price too! Post a project today to find the perfect freelancer for your next SQL project. 
API upsell image
Freelancer Enterprise

Company budget? Get more done for less

Use our workforce of 50 million to help your business achieve more.
Contact us
API upsell image
Freelancer API

50 million professionals on demand

Why hire people when you can simply integrate our talented cloud workforce instead?
Contact us

How hiring a SQL Engineer works

Post a Job

1. Post a job

Tell us what you need done in seconds.
Choose a Freelancer

2. Choose freelancers

Get your first bid in seconds and choose from the best.
Track Progress

3. Track progress

Chat with your freelancer and review their work 24/7.
Pay Safely

4. Pay safely

Only pay when you're completely satisfied.

So what are you waiting for?

Post a project today and get bids from talented freelancers
Hire a top SQL Engineer now

Looking for freelancers for other types of work?

SQL Consultants
SQL Developers
Cloud Finance
SQL Coders
SQL Experts
Game Consoles
SQL Gurus
QuickBase
AJAX
SQL Architects
Redmine
Moz
SQL Development Agencies
Fusion 360
SQL Specialists
LabVIEW
Oracle OBIEE
Travis CI
Qualtrics Survey Platform
SQL Programmers
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2021 Freelancer Technology Pty Limited (ACN 142 189 759)
There is no internet connection
Loading preview