Foreign Keys
6 practice questionsDatabase SystemsStep-by-step solutions
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1
A foreign key is used to:
A.Encrypt a table
B.Establish a link between two tables
C.Sort rows alphabetically
D.Delete duplicate rows
2
A foreign key in a table is used to:
A.Reference the primary key of another table
B.Encrypt the column
C.Sort the rows
D.Store images
3
Foreign keys enforce:
A.Referential integrity
B.Faster sorting
C.Encryption
D.Indexing
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