Data manipulation in heterogeneous databases

  • Authors:
  • Abhirup Chatterjee;Arie Segev

  • Affiliations:
  • -;-

  • Venue:
  • ACM SIGMOD Record
  • Year:
  • 1991

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Abstract

Many important information systems applications require access to data stored in multiple heterogeneous databases. This paper examines a problem in interdatabase data manipulation within a heterogeneous environment, where conventional techniques are no longer useful. To solve the problem, a broader definition for join operator is proposed. Also, a method to probabilistically estimate the accuracy of the join is discussed.