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________ is a tool even non-programmers can use to access information from a database.

A join operation:

A command used in Oracle to display how the query optimizer intends to access indexes, use parallel servers, and join tables to prepare query results is the:

The normal form which deals with multivalued dependencies is called:

A(n) ________ constraint is a type of constraint that addresses whether an instance of a supertype must also be an instance of at least one subtype.

A join operation:

In a supertype/subtype hierarchy, each subtype has:

In a supertype/subtype hierarchy, subtypes that are lower in the hierarchy inherit attributes from not only their immediate supertype but from all ________ in the hierarchy.

A mechanism in a ResultSet object in Java that points to the current row of data is called a:

In a supertype/subtype hierarchy, each subtype has: