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Chapter 9 · Paper 2: Algorithms, Programming and Logic

Databases

Storing and searching structured data.

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Topics in this chapter

  1. 9.1

    Single-table databases

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    Fields, records, primary keys and data types.

  2. 9.2

    SQL queries

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    Retrieving and sorting data with SELECT, FROM, WHERE and ORDER BY, and using SUM and COUNT.

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