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Time index access structure for temporal databases having concurrent multiple versions

  • US 5,440,730 A
  • Filed: 08/09/1990
  • Issued: 08/08/1995
  • Est. Priority Date: 08/09/1990
  • Status: Expired due to Term
First Claim
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1. A computer-based temporal database management system including a time index which comprises:

  • a) an ordered series of indexing time points defining time intervals during which at least one of a plurality of concurrent object version in said database is valid; and

    b) associated with each indexing point, pointer means identifying all database object versions that are valid at the time represented by said each indexing point.

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