×

Data management method and system

  • US 5,333,310 A
  • Filed: 05/24/1990
  • Issued: 07/26/1994
  • Est. Priority Date: 05/30/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. In a computer system having a database management computer system, a computer memory means, and an access control means which performs a concurrency control function for non-interfering sharing of data by a plurality of users, a data management method comprising the steps of:

  • storing a plurality of shared data records in the memory means, each record stored in conjunction with (i) a data name and (ii) a time parameter corresponding to the data name which are stored in the memory means;

    setting in said database management computer system a time condition as a set time condition threshold for classifying data;

    with the database management computer system, in response to access requests comparing the time parameter corresponding to a data name of each requested record with said set time condition threshold to classify the shared data record as one of (1) past data or (2) latest data in accordance with the comparison of the corresponding time parameter and the set time condition threshold;

    storing the shared data records classified as past data nd the shared data records classified as latest data in a past data storage portion of the memory means and a latest data storage portion of the memory means, respectively; and

    with the access control means, unlocking the shared data records classified as past data from the concurrency control function and allowing said past data records to be read from the past data storage portion of the memory means concurrently by said plurality of users without performance of the concurrency control function.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×