##  [Relational Schema](/relational-schema) 

  ##  [Relational Schema](https://natural.quantumdictionary.io/relational-schema-0) 

  

 [![Natural & Formal Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Natural%20%26%20Formal%20Sciences.png.webp?itok=2kCDRVQv)](/topic-specific-dictionaries/natural-formal-sciences)



**Natural & Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A formal description of the structure of a relational database: the set of tables (relations), their attributes and types, primary and foreign keys, and integrity constraints that together define the admissible shapes of instance data.