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Understanding Primary Keys in Databases by Barroughes Potani is a document available to read on EtoBox.
What is Understanding Primary Keys in Databases about?
A primary key uniquely identifies each record in a table using unique keys and values. A foreign key links tables together to create relationships between records. A compound key combines multiple fields to create a unique identifier for each record. An entity represents a person, place, or object with collected data like name, age, and address. A data model organizes and documents how data is stored and accessed along with relationships between different types of data.
- Author
- Barroughes Potani
- Language
- EN