SQL is Structured Query Language, which is a computer language for storing, manipulating and retrieving data stored in a relational database.
History:
The SQL programming language was first developedin the 1970s by IBM researchers Raymond Boyce and Donald Chamberlin.
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| Donald D. Chamberlin and Raymond F. Boyce |
Example:
SELECT * FROM Customers
WHERE Country='Germany' AND (City='Berlin' OR City='München');