Data processing: database and file management or data structures – File or database maintenance – Synchronization
Reexamination Certificate
2011-08-02
2011-08-02
Lee, Wilson (Department: 2163)
Data processing: database and file management or data structures
File or database maintenance
Synchronization
C707S653000
Reexamination Certificate
active
07991742
ABSTRACT:
Provided is a database schema migration difference detecting technique for detecting differences of a customized database schema before and after database migration by using XML technology, including: extracting a first database schema from a fresh database of a release and saving the first database schema in a first XML file; extracting a customized database schema from a customized database of the release and saving the customized database schema in a second XML file; comparing the first and second XML files, filtering the identical content in the first and second XML files and saving differences in a delta XML file; and comparing the delta XML file with a new database to detect a state of the customized database schema after migration. The detecting state indicates whether there is any loss or change in the customized database schema after migration, as well as, conflicts with the database schema in a database of a new release.
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Li Peng
Sun Bing Jiang
Wang Ke Fei
Davda Janaki K.
International Business Machines - Corporation
Konrad Raynes & Victor LLP
Lee Wilson
LandOfFree
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