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:
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All of the following are the main goals of normalization EXC…
All of the following are the main goals of normalization EXCEPT:
The normal form which deals with multivalued dependencies is…
The normal form which deals with multivalued dependencies is called:
The most commonly used form of join operation is the:
The most commonly used form of join operation is the:
A(n) ________ constraint is a type of constraint that addres…
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.
In a supertype/subtype hierarchy, subtypes that are lower in…
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(n) ________ constraint is a type of constraint that addres…
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.
The most commonly used form of join operation is the:
The most commonly used form of join operation is the:
The first part of an SQL query to be read is the ________ st…
The first part of an SQL query to be read is the ________ statement.
A mechanism in a ResultSet object in Java that points to the…
A mechanism in a ResultSet object in Java that points to the current row of data is called a: