Database concepts bingo

Exercise and reference answers

Clues and terms

1. Clue

   Software used to create and manage databases.

   Item

   DBMS

2. Clue

   What the relational model calls a table.

   Item

   Relation

3. Clue

   One row, holding the data of one real world entity.

   Item

   Tuple

4. Clue

   The number of attributes a relation carries.

   Item

   Degree

5. Clue

   The number of tuples a relation currently holds.

   Item

   Cardinality

6. Clue

   The set of values one attribute may take.

   Item

   Domain

7. Clue

   An attribute that could serve as the primary key.

   Item

   Candidate key

8. Clue

   Draws its value from another relation's primary key.

   Item

   Foreign key

9. Clue

   The snapshot of the database at a given moment.

   Item

   Instance

Instructions

Read each clue and tap the term it describes.

Explanation