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Method of using cache to determine the visibility to a remote database client of a plurality of database transactions

  • US 6,684,438 B2
  • Filed: 07/25/2002
  • Issued: 02/03/2004
  • Est. Priority Date: 02/26/1997
  • Status: Expired due to Term
First Claim
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1. A method of managing partial replication of a first database to a second database, comprising:

  • (a) determining whether a visibility of the second database to data being propagated from the first database is stored in a cache memory, and if so, accessing the visibility from the cache memory, and if not, (i) determining the visibility, and (ii) storing the visibility in the cache memory; and

    (b) propagating said data from the first database to the second database only if the second database has visibility to the data.

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