Choosing Features

The VTI provides many optional features. Choose the features that you need to fulfill the access-method specifications.

The following optional features support data definition:

• Data in extspaces, sbspaces, or both
• Fragmentation
• User-configured keywords

Support for the following optional features can contribute to access-method performance:

• Clustered data
• Fetch by rowid for indexed tables
• Parallel-function execution
• More than one row returned per scan-function call
• Complex qualifications

For more information about any of these optional features, refer to Design Decisions.