6.1. Database for dummies
The database typically contains an aggregation of data records such as a list of sale transactions, product catalog, customer profiles collection, etc.
The database is much like a telephone book; it is a list of records of the same structure: - phone owner’s name,
- address of telephone owner,
- telephone number of telephone owner.
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- item name,
- price,
- quantity,
- item type.
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Summary: a database is a large computer collection of structured data; it can be quickly expanded, updated, and retrieved for various purposes. Readme: the structure of each record is of the same type and is captured by a head of the table (that is, the list of column names).
Definition: a database is a structured collection of corresponding data related to a specific subject area.