MySQL for the Internet of Things by Charles Bell

Author:Charles Bell
Language: eng
Format: epub, pdf
Publisher: Apress, Berkeley, CA

The data are represented as related pieces of information (attributes or columns sometimes called fields) about a certain event or entity. The set of values for the attributes is formed as a tuple (sometimes called a record or row). Tuples are stored in tables that have the same set of attributes. Tables can then be related to other tables through constraints on keys, attributes, and tuples.

Tables can have special mappings of columns called indexes that permit you to read the data in a specific order. Indexes are also useful for fast retrieval of rows that match the value(s) of the indexed columns.

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