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