Appeal No. 2003-0032
Application No. 09/193,966
BACKGROUND
Appellants’ invention is directed to a method and system for
performing updates in a computer-implemented database management
system. According to Appellants, the conventional approach has
been disallowing the update of values in partitioning key columns
or allowing the update if the row partition remains unchanged
(specification page 3 & 4). As depicted in Figures 2B and 2C,
upon detecting that an update to a row will cause a change to the
row location, Appellants’ method takes control from the partition
from which the row is being moved, the partition to which the row
is being moved and all the partitions in between (Specification,
pages 9 & 10).
Representative independent claim 1 is reproduced below:
1. A method of performing updates in a computer-
implemented database management system, comprising:
(a) detecting that an update to a record will cause the
record to change locations in a database from an original
location to an updated location and
(b) selectively preventing activity in the database
between the original location and update location until the
updated record has changed locations in the database from the
original location to the updated location.
The Examiner relies on the following references in rejecting
the claims:
Lomet et al. (Lomet) 5,485,607 Jan. 16, 1996
Kodavalla et al. (Kodavalla) 5,717,919 Feb. 10, 1998
2
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