Database
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Foreign Key
Quick Definition
Field referencing primary key to establish table relationships
Full Definition
A field in one table that references the primary key of another table establishing a relationship between them.
Examples
referential integrity, JOIN operations, relational design
Related Terms
relational-database
primary-key
normalization
More Database Terms
SQL
Standard language for managing and querying databases
Read Replica
Copy of primary database for read-only queries
Cassandra
Distributed NoSQL database with high availability and scalability
Concurrency Control
Managing simultaneous data access while maintaining consistency
Referential Integrity
Constraint ensuring table relationships remain consistent
Database
Organized collection of structured data for storage and retrieval