The union of primary keys of the related entity sets becomes a _________.

Keep practicing — related questions

• What will happen if the union of primary keys of the related entity sets?
• The key to represent relationship between tables is called
• An attribute of one table matching the primary key of another table is called as
• Which key is related to SQL?
• An attribute of one table matching the primary key of another table is called
• A ___________ key value must match an existing primary key value or unique key value.
• A primary key _________.
• In a database relation, when one or more fields serve as primary key, then such a key is called