1. By Checking for changes to the structure of the data. Changed data structures have to be dealt with pro-grammatically.
2. Retrieve the target tables and fields from the records specified by the integration’s replication scheme.
Suppose an organization wants to monitor its reputation in the marketplace. It may have data from many sources, including online reviews, social media mentions, and online transactions. An ETL tool can extract data from these sources and load it into a data warehouse where it can be analyzed and mined for insights into brand perception.
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