Database - Data Models into Database Designs
Exercise : Data Models into Database Designs - True or False
- Data Models into Database Designs - General Questions
- Data Models into Database Designs - True or False
A foreign key is used to implement relationships between tables.
The terms alternate key and candidate key mean the same thing.
In 1:N relationships, which entity becomes the parent entity is arbitrary.
When the parent entity is required, cascading updates and cascading deletions should be allowed or the associated actions on the parent should be prohibited.
In a 1:1 relationship, the primary key placement is arbitrary.