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Question :

Why we can not create an aggregate on an ODS Object?

Category Business Intelligence Interview Questions
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Added on 9/22/2014
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► Operational Data Store has very low data latency. Data moved to ODS mostly on event based rather than time based ETL to Data Warehouse/Data Mart.<br><br>► ODS is more closer to OLTP system. We don't normally prefer to store aggregated data in OLTP. So it is with ODS.<br><br>► Unlike data warehouse where data is HISTORICAL, ODS is near real time(NRT). So data aggregation is less important is ODS as data keeps changing.
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