Method of removing unneeded data from DB2 logs and other data se

Details Method of removing unneeded data from DB2 logs and other data se Method of removing unneeded data from DB2 logs and other data se

1994-09-19

1998-06-02

Black, Thomas G.

Data processing: database and file management or data structures

Database design

Data structure types

G06F 1730

Patent

active

057616760

ABSTRACT:
In a data set containing displacement-dependent data (e.g., data identified by relative byte address), such as a DB2 log data set, data that is determined to be unneeded or otherwise removable is overwritten with a compressible binary pattern such as a sequence of binary zeros. The resulting substitute data set can be compressed to occupy less storage space and require less time for data recovery.

REFERENCES:
patent: 4961134 (1990-10-01), Crus et al.
patent: 5408654 (1995-04-01), Barry
patent: 5430871 (1995-07-01), Jamoussi et al.
patent: 5517641 (1996-05-01), Barry et al.
Elmasri R. et al., "Fundamentals of Database Systems" pp. 663-683, Dec. 1989.

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