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What is DB4 - Extra about?

The document explains various types of keys in Database Management Systems (DBMS), including Super, Primary, Candidate, Alternate, Foreign, Compound, Composite, and Surrogate Keys, each with distinct functionalities. Keys are essential for uniquely identifying records in tables and establishing relationships between them. The document also outlines the differences between primary and foreign keys, emphasizing their roles in maintaining data integrity.

Author

yafa3199

Language

EN