Examlex
The degree of a relationship is the number of entity classes in the relationship.
Q10: In the MySQL Table Editor,the abbreviation PK
Q15: Complex networks can be represented by reducing
Q16: The presence of one or more foreign
Q23: The SQL command SELECT is used to
Q24: An object identifier is one or more
Q43: The design produced by reverse engineering may
Q50: To determine the number and type of
Q59: When transforming an ID-dependent E-R data model
Q77: A null value in a column may
Q97: Converting date,money or other more specific data