©  Rahul Batra 2018
Rahul BatraSQL Primerhttps://doi.org/10.1007/978-1-4842-3576-8_19

A History of SQL and Relational Databases

Rahul Batra1 
(1)
Gurgaon, Haryana, India
 

Computers began their life as advanced calculating machines in the late 1940s and 1950s. But soon, businesses realized their importance in automated processing and recordkeeping. By the 1960s, computers increasingly used file-oriented systems to store data.

A typical workflow would consist of all related data stored as a single file and then an application program would operate on this file exclusively to provide an output. This operation would typically be done over night and there were multiple data files and multiple application programs working on them to support different data ...

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