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Method and mechanism for rolling back a transaction on a row of data

  • US 7,277,900 B1
  • Filed: 02/10/2003
  • Issued: 10/02/2007
  • Est. Priority Date: 09/29/2000
  • Status: Expired due to Term
First Claim
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1. A computer implemented method to compensate for changes to data in a database system made by a committed transaction, comprising:

  • identifying a data item accessed by the committed transaction;

    identifying the committed transaction using the identified data item;

    using the identified committed transaction to identify one or more other data items accessed by the committed transaction;

    determining whether a dependency exists with respect to another committed transaction based upon compensating for any access made by the committed transaction to the data item or the one or more other data items; and

    compensating for an access made by the committed transaction to the data item or the one or more other data items, wherein the access made by the committed transaction is compensated by performing a roll-back operation.

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