1Z0-071 Web TestEngine demo

Select all that apply.

• A

  A one-to-one relationship is always a self-referencing relationship.

• B

  A relationship can be mandatory for both entities.

• C

  A many-to-many relationship can be implemented only by using foreign keys.

• D

  A one-to-many relationship in one direction is a one-to-one relationship in the other direction.

• E

  A table name can be specified just once when selecting data from a table having a self-referencing relationship.