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In a relational database, what is a Foreign key used for? To encrypt sensitive data To uniquely identify a record To create a backup of
In a relational database, what is a Foreign key used for?
To encrypt sensitive data
To uniquely identify a record
To create a backup of the database
To enforce referential integrity
To establish a relationship between two tables
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Data Management Databases And Organizations
Authors: Richard T. Watson
2nd Edition
0471180742, 978-0471180746
