Related Questions

If no multivalued attributes exist and no partial dependencies exist in a relation, then the relation is in what normal form?
A First normal form
B Second normal form
C Third normal form
D Fourth normal form
If no multivalued attributes exist in a relation, then the relation is in what normal form?
A First normal form
B Second normal form
C Third normal form
D Fourth normal form
All attribute declarations begin with the keyword ____________ followed by the element name, attribute name, attribute type, and default data information.
A XML
B SGML
C ATTLIST
D HTML
When building a database from an existing set of tables, we may safely assume that there are no multivalued dependencies in the data we are given.
A True
B False
When mapping a many-to-many unary relationship into a relation which of the following is true?
A One relation is created.
B Two relations are created.
C Three relations are created.
D Four relations are created.
When mapping a binary many-to-many relationship into a relation which of the following is true?
A One relation is created.
B Two relations are created.
C Three relations are created.
D Four relations are created.
When mapping a ternary relationship with an associative entity into a relation which of the following is true?
A One relation is created.
B Two relations are created.
C Three relations are created.
D Four relations are created.
When mapping a regular entity into a relation which of the following is true?
A One relation is created.
B Two relations are created.
C Three relations are created.
D Four relations are created.
The __________ attribute sets the text direction as related to the lang attribute.
A lang
B sub
C dir
D ds
A derived attribute is an attribute whose values can be calculated from a related relationship.
A True
B False

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