a) not Null
b) Null
c) both Null & not Null
d) any value
Answer: a
Related Posts
The database environment has all of the following components except:
Related fields in a database are grouped to form a
A logical schema
The language used in application programs to request data from the DBMS is referred to as the
NULL is
In an E-R diagram attributes are represented by
In a Hierarchical model records are organized as
Join The Discussion