A(n)____________________ is a database structure that is associated with a table or a cluster and speeds up data retrieval when the table or cluster is used in a query.
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Q81: The _ index is an index structure
Q82: _ indexes include table rows that have
Q83: Constraints that apply to a single column
Q84: _ are used to contain automated counter
Q85: A(n)_ value is an empty column within
Q87: A(n)_ key establishes a relationship between two
Q88: Constraints that apply to multiple columns,such as
Q89: _ constraints are simple to create and
Q90: Creating a primary key in an Oracle
Q91: A(n)_ is an overlay onto one or
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