What are the best practices for using foreign keys in databases?
An example of an AI chatbot conversation about best practices for foreign keys in databases.
What are the best practices for using foreign keys in databases?
When using foreign keys, ensure they enforce referential integrity, use appropriate data types, and index them for performance.
Why is referential integrity important?
Referential integrity ensures that relationships between tables remain consistent, preventing orphaned records and maintaining data accuracy.
Should I always index foreign keys?
Indexing foreign keys is generally recommended as it improves query performance, especially for join operations.
What are the common pitfalls to avoid with foreign keys?
Common pitfalls include not enforcing referential integrity, using mismatched data types, and neglecting to index foreign keys.
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