Data file updating storage method
A data file and file technology, applied in the information field, can solve the problem of no actual change in file content, and achieve the effect of reducing data storage time, reducing data preservation, and improving storage efficiency
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[0023] The technical solutions of the present invention will be described in detail below in combination with embodiments and drawings.
[0024] The core idea of the present invention is: divide the data file into several data blocks, calculate the check code of each data block (for example: use the CRC algorithm to calculate the CRC code of the data block), and the check code of all data blocks The code is attached to the fixed area of the data file. When storing data, it is judged whether the storage needs to be updated according to the check code of each data block of the data file. For the sake of simplicity, data files can be divided into blocks according to a fixed size.
[0025] Such as figure 1 The update storage process shown:
[0026] Step 1: Divide the object file (new file) into several data blocks according to a fixed size. For example, divide a file with a size of M into N data blocks, where the first N-1 data blocks have the same size, and the last one Th...
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