When decreasing cardinalities,there will always be ________.
A)relationship loss
B)foreign key loss
C)data loss
D)default value loss

Question

Quizplus · Accepted Answer

Decreasing cardinalities means reducing the number of instances in a relationship or in a table, which could result in loss of data. This is because data may need to be deleted or merged as a result of the reduction in instances. Therefore, there is always a risk of data loss when decreasing cardinalities. Options A and B are not always true, as it depends on the specific circumstances and design of the relationships and foreign keys. Option D is not directly related to decreasing cardinalities.

When Decreasing Cardinalities,there Will Always Be ________