Conflict resolution system for database parallel editing
First Claim
1. A method of updating a database, comprising a sequence of procedures:
- a first procedure includinga step of receiving a first editing work to said database, anda step of fetching a first ordinal number that was a version number of said database at the time of making said first editing work and has been assigned to said first editing work,a second procedure includinga step of comparing said first ordinal number and a second ordinal number that was a version number of said database at the time of making said second editing work,a third procedure includinga step of updating said database by said first editing work, if said first ordinal number is newer than said second ordinal number.
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Abstract
As a conflict resolution method for the modification/editing of databases, the mechanism “for assigning priority to editing based on more up-to-date information” is disclosed.
The method is effective in both full-fledged “parallel DB editing” in which a computer holds duplicated DBs permanently and the case in which a computer holds the duplicated DBs temporarily. The method is characterized in that “editing based on old information is determined to be ineffective.”
When the information for which a conflict is predicted is edited, the possibility that the editing becomes ineffective can be reduced by a “substantially online operation” which performs “the synchronization with the up-to-date information, the editing, and the transmission of the editing records” quickly. Conversely, when the information for which the conflict is not predicted is edited, it is possible to carry out a “substantially off-line operation” which performs the editing at slow speed and transmits the editing records collectively after the synchronization of the information.
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Citations
12 Claims
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1. A method of updating a database, comprising a sequence of procedures:
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a first procedure including a step of receiving a first editing work to said database, and a step of fetching a first ordinal number that was a version number of said database at the time of making said first editing work and has been assigned to said first editing work, a second procedure including a step of comparing said first ordinal number and a second ordinal number that was a version number of said database at the time of making said second editing work, a third procedure including a step of updating said database by said first editing work, if said first ordinal number is newer than said second ordinal number. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus of updating a database, comprising the following blocks:
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a first block, at least receives a first editing work to said database, and fetches a first ordinal number that was a version number of said database at the time of making said first editing work and has been assigned to said first editing work, a second block, at least compares said first ordinal number and a second ordinal number that was a version number of said database at the time of making said second editing work, a third block, at least updates said database by said first editing work, if said first ordinal number is newer than said second ordinal number. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification
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Current AssigneeKunio Kamimura
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Original AssigneeKunio Kamimura
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InventorsKamimura, Kunio
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Primary Examiner(s)Wu, Yicun
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Application NumberUS12/995,158Publication NumberTime in Patent Office2,932 DaysField of SearchNoneUS Class CurrentCPC Class CodesG06F 16/219 Managing data history or ve...G06F 16/2308 Concurrency control transac...
