Data restoring and synchronizing method based on log snapshot
A data and log technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of huge cost investment, achieve performance improvement, realize data recovery and synchronization, and save storage costs
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[0026] In the following, a method for data recovery and synchronization based on log snapshots of the present invention will be further described with reference to the accompanying drawings and specific embodiments.
[0027] As attached figure 1 As shown, a log snapshot-based data recovery and synchronization method of the present invention includes the following steps:
[0028] A. When the application system adds, deletes, and modifies the database, it concurrently writes the changed data information into a log file in a specific format.
[0029] B. The user gives a request for data recovery or synchronization of a specified table at a specified time, and the application program starts to read the log file, and uses an innovative approach algorithm to retrieve the eligible data from the log file.
[0030] C. Generate abstract data snapshots according to a certain organizational format from the acquired data.
[0031] D. Use the generated data snapshot to realize the data recover...
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