Data storage compatibility method

Abstract

The invention provides a data storage compatibility method. The scheme of the data storage compatibility method abandons a traditional idea that compatibility is realized on the basis of data transformation of different versions, decomposes storage contents into metadata which only contains basic contents and is irreverent to business, and realizes compression, compatibility processing and storage on the metadata. The method comprises the following steps: distributing one identification number for each piece of metadata in advance, and guaranteeing that the identification number of each field is constant and different; identifying the structure mapping of the metadata in a message where the metadata belongs to by a Key field so as to cause a user to normally obtain message data; and during storage, encoding the identification number into the Key field. The data storage compatibility method is efficient enough and introduces a data compression method to effectively utilize a storage space to realize the purposes of efficient processing, minimum storage and perfect mutual compatibility.

Description

technical field [0001] The invention relates to a data storage compatibility method, in particular to a data storage compatibility method suitable for software version replacement compatibility. Background technique [0002] Software version replacement is a gradual and inevitable process. In the process of replacement, some software functions will always be added and changed, which will cause differences in the data structure and content of the storage management of the new and old versions of the software. The data information generated by version software is very meaningful and needs to be preserved and used, which requires a complete set of methods to ensure data compatibility between different versions. [0003] At present, the existing methods basically add some version identification information to each version of the data, and then convert the data of different versions through codes during the development of the new version of the software to achieve data compatibil...

AI Technical Summary

Problems solved by technology

[0004] 1. Only the new version can be compatible with the old version, and the storage and reading data between different versions cannot be compatible with each other; in some cases, it is entirely possible that the old version of the software uses the new version of the data;

[0005] 2. It is necessary to maintain a separate compatible conversion method for every two version numbers. If there are N versions, 2^N conversion methods need to be maintained, which requires additional work, and when there are many maintenance methods, the work will become very complex and error-prone;

[0006] 3. The data structure information of each historical version must be preserved, which requires additional maintenance. If the information is lost, the compatibility will fail

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