30 lines
780 B
Markdown
30 lines
780 B
Markdown
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---
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tags:
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- databases
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---
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# Relational database architecture
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Tables, fields and records are the basic building blocks of databases
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## Table
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A group of similar data with rows for **records** and columns for each
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**field**.
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## Record
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A horizontal row: a collection of items which may be of different data types all
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relating to the individual or object that the record describes. A single _entry_
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in the table. Sometimes called **row** interchangeably.
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## Field
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A vertical column: stores a single particular unit of data for each record. Each
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field must use the same data type. Sometimes called **field** interchangeably.
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Each individual field has **properties:** such as the data type, length or the
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total memory allocation.
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