Choose features for the access method
The Virtual-Table Interface (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