System and method for aging versions of data in a main memory database

  • US 6,125,371 A
  • Filed: 08/19/1997
  • Issued: 09/26/2000
  • Est. Priority Date: 08/19/1997
  • Status: Expired due to Term
First Claim
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1. A processing system for use with a database of data records, said database stored in a memory, comprising:

  • a time stamping controller that assigns a time stamp to transactions to be performed on said database;

    a versioning controller that creates multiple versions of ones of said data records affected by said transactions that are update transactions; and

    an aging controller that monitors a measurable characteristic of said memory and deletes ones of said multiple versions of said ones of said data records in response to said time stamp and said measurable characteristic thereby to increase a capacity of said memory.

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