MAINTAINING DATA STREAM HISTORY FOR GENERATING MATERIALIZED VIEWS

MAINTAINING DATA STREAM HISTORY FOR GENERATING MATERIALIZED VIEWS

Materialized views may be generated at a managed materialized view platform that accepts data streams as a source. When updating a materialized view with a data stream as a source, a stored portion of the stream is used to maintain a history of changes to be made. When a join operation needs to util...

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Bibliographische Detailangaben
Hauptverfasser: Ummenthala, Shivateja Reddy, Zaki, Omer Ahmed, Deshpande, Rohan, Dugar, Rajib, Papakonstantinou, Yannis, Bharathy, Karthik Gurumoorthy Subramanya
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:Materialized views may be generated at a managed materialized view platform that accepts data streams as a source. When updating a materialized view with a data stream as a source, a stored portion of the stream is used to maintain a history of changes to be made. When a join operation needs to utilize the data stream source to determine an update to the materialized view, the data stream is preserved to complete the join and update the materialized view.