Referential integrity should be enforced in a database with related tables because it:
A) helps ensure data is automatically updated.
B) makes the database easier to repair.
C) creates a primary key in every table of a database.
D) helps ensure invalid data is not entered into a table.
D
Computer Science & Information Technology
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The navigation buttons allow you to:
A) sort records. B) delete records. C) edit records. D) browse records.
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If searching an external data collection organized as a balanced search tree, what is actually organized as the external search tree?
a. the data file b. the hash index c. the blocks d. the index file
Computer Science & Information Technology