A(n) ____ enables a database administrator to define schema components.
A) extensible markup language (XML)
B) data definition language (DDL)
C) unified modeling language (UML)
D) query language
Correct Answer:
Verified
Q30: In the _ model, the user perceives
Q42: The _ model was developed to allow
Q46: The relational data model was developed in
Q52: A(n)_ is a representation of the relational
Q52: Each column in a relation represents a(n)
Q54: Each row in a relation is called
Q55: A(n) _ in a hierarchical model is
Q56: The _ defines the portion of the
Q57: The _ data model uses the concept
Q58: A(n)_ model represents a global view of
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