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CS 61A Summer 2018 Lecture 22: SQL I #35

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SQL is an example of a declarative programming language. Statements do not describe computations directly, but instead describe the desired result of some computation. It is the role of the query interpreter of the database system to design and perform a computational process to produce such a result.

This interaction differs substantially from the procedural programming paradigm of Python or Scheme. In Python, computational processes are described directly by the programmer. A declarative language abstracts away procedural details, instead focusing on the form of the result.

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