E cient View Maintenance at Data Warehouses

  title={E cient View Maintenance at Data Warehouses},
  author={Deepansh Agrawal and Amr El Abbadi and A. Singh and T. and YurekDepartment},
We present incremental view maintenance algorithms for a data warehouse derived from multiple distributed autonomous data sources. We begin with a detailed framework for analyzing view maintenance algorithms for multiple data sources with concurrent updates. Earlier approaches for view maintenance in the presence of concurrent updates typically require two types of messages: one to compute the view change due to the initial update and the other to compensate the view change due to interfering… CONTINUE READING
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