What is the difference between data integrity and Referential integrity?

Data integrity refers to the accuracy, consistency, and reliability of data throughout its lifecycle, ensuring that the data remains correct and valid over time. Referential integrity, on the other hand, is a specific aspect of data integrity that ensures relationships between tables in a database are maintained; it requires that foreign keys in one table correspond to primary keys in another, preventing orphaned records. In essence, while data integrity encompasses the overall trustworthiness of data, referential integrity specifically focuses on the correctness of relationships between data entities.