SQL


What is SQL?

Structured Query Language (SQL) is a highly popular domain specific language (DSL) used to communicate with relational database management systems (RDBMS). SQL is a standard that is based on the "relational model", defined by professor E.F. Codd, of IBM during the 1960's and 1970s. Codd defined both a relational algebra and a relational calculus as foundational models in his endeavor to reinvent database management systems. This led to his seminal 1970 paper "A Relational Model of Data for Large Shared Data Banks". Commonly used implementations of SQL include Oracle, IBM's DB2, Postgres, MySQL, and SQLite. Notably, SQLite is not a client/server system, but rather an embedded database that is used as a core application-level storage system in macOS, iOS, and Android. There has been much debate over what constitutes a "real" relational system, as some widely used database systems famously lacked features that Codd considered foundational to the relational model, such as "foreign keys". The flexibility of SQL has proven so powerful that many non-relational systems (e.g. Apache Spark) have implemented subsets or variants of the language to make it easier for people to draw upon their capabilities.

How much do SQL developers make?

We don't have enough data for New York,
so we've calculated your salary information for the San Francisco Bay Area instead:
Based on real Hired interview data, SQL developers in New York earn an average annual salary of
Based on real Hired interview data, SQL developers in SF Bay Area earn an average annual salary of
$146,018
The salaries of candidates in this role range from a low of $70,000 to a high of $210,000, with a median salary of $150,000.

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We expect SQL developers to receive 3 Interview Requests on Hired.

SQL Resources

Check out the resources below to continue sharpening your SQL skills

SQL Engineer Jobs

Senior Data Scientist, Global Imports
Senior Data Scientist, Global Imports
5001+ employees
Amazon is seeking an experienced candidate to develop and manage our growing global supply chain as part of Amazon Global Logistics.<br><br>Since 1995, Amazon has focused on being "Earth's most cus...
About Amazon: Amazon is an electronic commerce and cloud computing company.
Senior Data Scientist, Global Imports
5001+ employees
Senior Data Scientist, Global Imports
Amazon is seeking an experienced candidate to develop and manage our growing global supply chain as part of Amazon Global Logistics.<br><br>Since 1995, Amazon has focused on being "Earth's most cus...
About Amazon: Amazon is an electronic commerce and cloud computing company.
Analyst, Cyber Security, Applications & Cloud
Analyst, Cyber Security, Applications & Cloud
If you have what it takes to become part of the Vistra Energy family and would like to start a promising career with a global leader, take a look at the exciting employment opportunities that are c...
Analyst, Cyber Security, Applications & Cloud
Analyst, Cyber Security, Applications & Cloud
If you have what it takes to become part of the Vistra Energy family and would like to start a promising career with a global leader, take a look at the exciting employment opportunities that are c...
Audio Data Analysts (Audio, Analysis) -Halo Error Categorization
Audio Data Analysts (Audio, Analysis) -Halo Error Categorization
Q Analysts is looking for a team of Audio Data Analysts to work with an android based assistant product in our Q TestLab based in Kirkland, WA. Data Analysts will spend their day listening to audio...
Audio Data Analysts (Audio, Analysis) -Halo Error Categorization
Audio Data Analysts (Audio, Analysis) -Halo Error Categorization
Q Analysts is looking for a team of Audio Data Analysts to work with an android based assistant product in our Q TestLab based in Kirkland, WA. Data Analysts will spend their day listening to audio...
IT Application Analyst - IBM TM1 Planning Analytics
IT Application Analyst - IBM TM1 Planning Analytics
1001-1500 employees
Job Title:<br><br>IT Application Analyst - IBM TM1 Planning Analytics<br><br>Description:<br><br>The IT Application Analyst position is responsible for design and development of reports using TM1 P...
About Century Communities: Century Communities is a company that operates as a builder of single-family homes, townhomes and flats.
IT Application Analyst - IBM TM1 Planning Analytics
1001-1500 employees
IT Application Analyst - IBM TM1 Planning Analytics
Job Title:<br><br>IT Application Analyst - IBM TM1 Planning Analytics<br><br>Description:<br><br>The IT Application Analyst position is responsible for design and development of reports using TM1 P...
About Century Communities: Century Communities is a company that operates as a builder of single-family homes, townhomes and flats.
Principal Network Communications Analyst
Principal Network Communications Analyst
5001+ employees
Where will you find innovation and technology? Right here at Northrop Grumman Corporation. Northrop Grumman Enterprise Services is seeking a well-qualified Network Analyst to join its dynamic team ...
About Northrop Grumman: Northrop Grumman is a provider of autonomous systems, strike, logistics, C4ISR, and cyber solutions for government and commercial customers.
Principal Network Communications Analyst
5001+ employees
Principal Network Communications Analyst
Where will you find innovation and technology? Right here at Northrop Grumman Corporation. Northrop Grumman Enterprise Services is seeking a well-qualified Network Analyst to join its dynamic team ...
About Northrop Grumman: Northrop Grumman is a provider of autonomous systems, strike, logistics, C4ISR, and cyber solutions for government and commercial customers.
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