What is Smart Scan ?
The data search and retrieval processing can be offloaded to the Exadata Storage Servers. This feature is called Smart Scan. Using this Smart Scan, Oracle Database can optimize the performance of operations that perform table and index scans by performing the scans inside Exadata Storage Server, rather than transporting all the data to the database server.
Smart Scan capabilities includes :-
1) Predicate Filtering
2) Column filtering
3) Join Processing
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