Data Change Marker

Abstract

The invention discloses a data change marking device which comprises a storage, a searcher and an encoder. After a root object and a subobject are scanned by the searcher, marking is performed on the scanning fixing marker bits of the root object and the subobject; after attributes of the root object or the subobject are changed, the root object or the subobject with the attributes changed is encoded through the encoder, and marking is performed on changed fixing marker bits of the root object or the subobject with the attributes changed; and when an object is newly increased, marking is performed on one newly increased fixing marker bit of the newly increased newly increased at the encoding stage through the encoder.

Description

technical field [0001] The present invention relates to an electronic digital data processing device, and in particular to a data change marking device. Background technique [0002] The commonly used methods to obtain object change information are the snapshot method and the log method. The detailed operations of the above methods are as follows. The snapshot method is used to obtain the image of the data at a certain point in time, and the difference between the two time points is obtained by comparing the data; while the log method is to record the data change information every time the data is changed. [0003] However, the disadvantage of using the snapshot method is that in the case of many objects, the snapshot method needs to compare the attributes of the objects one by one, which is not only time-consuming, but also inefficient; and the disadvantage of using the log method is that it will obtain object Every time the state is changed, when the object change process...

AI Technical Summary

Problems solved by technology

[0003] However, the disadvantage of using the snapshot method is that in the case of many objects, the snapshot method needs to compare the attributes of the objects one by one, which is not only time-consuming, but also inefficient; and the disadvantage of using the log method is that it will obtain object Every time the state is changed, when the object change process is complicated, it will seriously affect the efficiency of using the log method

[0004] This shows that above-mentioned existing mode obviously still has inconvenience and defective, and needs to be improved

In order to solve the above problems, related fields have tried their best to find a solution, but a suitable solution has not been developed for a long time.

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