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 Washington D.C.,
so we've calculated your salary information for the San Francisco Bay Area instead:
Based on real Hired interview data, SQL developers in Washington D.C. earn an average annual salary of
Based on real Hired interview data, SQL developers in SF Bay Area earn an average annual salary of
$122,392
The salaries of candidates in this role range from a low of $70,000 to a high of $190,000, with a median salary of $120,000.

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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

ERP Business Analyst Senior
ERP Business Analyst Senior
Description:This role supports the procurement organization's SAP requirements. The job is to work with the procurement organization to understand systems needs, create required design and specific...
ERP Business Analyst Senior
ERP Business Analyst Senior
Description:This role supports the procurement organization's SAP requirements. The job is to work with the procurement organization to understand systems needs, create required design and specific...
Solutions Analyst
Solutions Analyst
OverviewResponsible for providing advanced technical advice, counsel and expertise in direct support of securing sales of networked printing devices as well as associated software/servers and profe...
About Canon Solutions America: Canon Solutions America provides enterprise, production, and large format printing solutions, supported by professional service offerings.
Solutions Analyst
OverviewResponsible for providing advanced technical advice, counsel and expertise in direct support of securing sales of networked printing devices as well as associated software/servers and profe...
About Canon Solutions America: Canon Solutions America provides enterprise, production, and large format printing solutions, supported by professional service offerings.
Computational Scientist (503743)
Computational Scientist (503743)
Located in a city known for its rich technology and innovative leadership, our Boston Research Center sits adjacent to the Massachusetts Institute of Technology (MIT). The center conducts research ...
Computational Scientist (503743)
Computational Scientist (503743)
Located in a city known for its rich technology and innovative leadership, our Boston Research Center sits adjacent to the Massachusetts Institute of Technology (MIT). The center conducts research ...
Oracle Cloud P2P Analyst
Oracle Cloud P2P Analyst
1501-5000 employees
Oracle Cloud P2P Analyst Seattle, WA<br><br>Company Description<br><br>Dropbox is a leading global collaboration platform that's transforming the way people work together, from the smallest busines...
About Dropbox: Dropbox is a file hosting service that offers cloud storage, file synchronization, personal cloud and client software.
Oracle Cloud P2P Analyst
1501-5000 employees
Oracle Cloud P2P Analyst
Oracle Cloud P2P Analyst Seattle, WA<br><br>Company Description<br><br>Dropbox is a leading global collaboration platform that's transforming the way people work together, from the smallest busines...
About Dropbox: Dropbox is a file hosting service that offers cloud storage, file synchronization, personal cloud and client software.
Data Analytics Support Engineer Associate - Grand Prairie, Texas
Data Analytics Support Engineer Associate - Grand Prairie, Texas
Description:The Data Analytics Support Engineer is an entry level, hybrid role that offers qualified candidates to start career in a DataOps environment in Missiles & Fire Control (MFC) business of...
Data Analytics Support Engineer Associate - Grand Prairie, Texas
Data Analytics Support Engineer Associate - Grand Prairie, Texas
Description:The Data Analytics Support Engineer is an entry level, hybrid role that offers qualified candidates to start career in a DataOps environment in Missiles & Fire Control (MFC) business of...
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