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 Boston,
so we've calculated your salary information for the San Francisco Bay Area instead:
Based on real Hired interview data, SQL developers in Boston earn an average annual salary of
Based on real Hired interview data, SQL developers in SF Bay Area earn an average annual salary of
$146,325
The salaries of candidates in this role range from a low of $70,000 to a high of $250,000, with a median salary of $150,000.

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SQL Resources

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SQL Engineer Jobs

Business Intelligence Engineer
Business Intelligence Engineer
5001+ employees
Do you pioneer? Do you enjoy breaking down and solving complex problems for the benefit of a quickly expanding customer base, focusing first on our customer and working backwards? If so, the Amazon...
About Amazon: Amazon is a company operating a marketplace for consumers, sellers, and content creators.
Business Intelligence Engineer
5001+ employees
Business Intelligence Engineer
Do you pioneer? Do you enjoy breaking down and solving complex problems for the benefit of a quickly expanding customer base, focusing first on our customer and working backwards? If so, the Amazon...
About Amazon: Amazon is a company operating a marketplace for consumers, sellers, and content creators.
Senior Software Development Engineer - Big Data Technologies
Senior Software Development Engineer - Big Data Technologies
5001+ employees
Amazon is big and very data driven. Interested in building the next generation analytics platform to make this easy at an Amazon scale?<br><br>Amazon's BDT organization is building a new data lake ...
About Amazon: Amazon is a company operating a marketplace for consumers, sellers, and content creators.
Senior Software Development Engineer - Big Data Technologies
5001+ employees
Senior Software Development Engineer - Big Data Technologies
Amazon is big and very data driven. Interested in building the next generation analytics platform to make this easy at an Amazon scale?<br><br>Amazon's BDT organization is building a new data lake ...
About Amazon: Amazon is a company operating a marketplace for consumers, sellers, and content creators.
Database Engineer (PureData)
Database Engineer (PureData)
Vaxcom Services, Inc.<br><br>www.vaxcom.com<br><br>Vaxcom Services Inc. (an Xator Corporation National Security Solutions Company) is a niche provider of intelligence related support services. We a...
Database Engineer (PureData)
Database Engineer (PureData)
Vaxcom Services, Inc.<br><br>www.vaxcom.com<br><br>Vaxcom Services Inc. (an Xator Corporation National Security Solutions Company) is a niche provider of intelligence related support services. We a...
TV and Mobile UAT Analyst
TV and Mobile UAT Analyst
TV and Mobile UAT Analyst<br><br>Long-term (1 Year+) Consulting Engagement<br><br>Location: Dallas, Texas<br><br>We have an IMMEDIATE new job opening for a TV and Mobile UAT Analyst to join our tea...
TV and Mobile UAT Analyst
TV and Mobile UAT Analyst
TV and Mobile UAT Analyst<br><br>Long-term (1 Year+) Consulting Engagement<br><br>Location: Dallas, Texas<br><br>We have an IMMEDIATE new job opening for a TV and Mobile UAT Analyst to join our tea...
Data Scientist, Meta
Data Scientist, Meta
Founded by Dr. Priscilla Chan and Mark Zuckerberg in 2015, the Chan Zuckerberg Initiative (CZI) is a new kind of philanthropy that's leveraging technology to help solve some of the world's toughest...
Data Scientist, Meta
Data Scientist, Meta
Founded by Dr. Priscilla Chan and Mark Zuckerberg in 2015, the Chan Zuckerberg Initiative (CZI) is a new kind of philanthropy that's leveraging technology to help solve some of the world's toughest...
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