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