Depending on the DBMS,when changing the minimum cardinality on the parent side from zero to one,the foreign key constraint that defines the relationship may have to be dropped before the change is made and re-added afterwards.

Question

Quizplus · Accepted Answer

This is true, as changing the minimum cardinality on the parent side from zero to one means that all child records must have a corresponding parent record. If the foreign key constraint is not dropped before making the change, it may cause errors or inconsistencies in the database. After the change is made, the foreign key constraint must be re-added to ensure data integrity.

Depending on the DBMS,when Changing the Minimum Cardinality on the Parent