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What is the purpose of data integrity?
An
record is a record in a database that references a non-existent record in another table.
Domain integrity defines the valid values and data types for
in a database.
What is orphaned data?
integrity constraint
Referential Integrity
Cascade delete is a feature that allows
a record in a database and automatically deleting all related records in other tables.
Removing redundant data can
data integrity and efficiency.
Domain integrity defines the
values that can be stored in a particular column in a database table.
Redundant data can lead to
in the database.
What happens to related data when cascade delete is enabled?
Entity integrity ensures that each
in a database has a unique identifier.
data validation
Entity Integrity
Domain Integrity
What is data integrity?
Cascade delete is a feature that automatically
all related records when a parent record is deleted.
Referential integrity ensures that
key values in a database always match a primary key value in another table.
How can referential integrity be enforced in a database?
One way to minimize redundant data is through
techniques.
