Asked by Ahmed El Shamlol on Jul 29, 2024
Verified
When you specify referential integrity,you need to decide how to handle the update of the primary key.What decisions do you need to make?
Referential Integrity
A principle in databases that ensures relationships between tables remain consistent, where keys referenced across tables must exist.
Primary Key
The unique identifier for each record in a database table, ensuring no two rows have the same key.
- Gain knowledge on how to handle updates of primary keys and the decisions involved with referential integrity.
Verified Answer
DN
Donia NimehJul 30, 2024
Final Answer :
You need to decide if you want to prohibit this type of update or whether you want to cascade the update.Cascading the update means allowing the change,but making the corresponding change in the foreign key on all related records.
Learning Objectives
- Gain knowledge on how to handle updates of primary keys and the decisions involved with referential integrity.
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