Data access system and method

Abstract

The invention provides a data access system and method. The data access system provided by the invention comprises a memory, a memory database and a memory database space extension module. The memory is used to provide a storage space. The memory database is used to access user data containing user identifications. The memory database space extension module is used to load a free storage space from the memory to the memory database when determining that the ratio of the currently used capacity to the total capacity of the memory database is larger than a loading threshold. When the used capacity of the memory database reaches a certain ratio, the extension memory database space module can load the free storage space from the memory to the memory database so as to achieve capacity extension of the memory database, thereby resolving the problem that the capacity of the existing memory database is fixed as long as the memory database starts.

Description

Technical field [0001] The present invention relates to the field of database technology, in particular to a data access system and a data access method thereof. Background technique [0002] An in-memory database is a database that puts data into memory for direct manipulation. Compared with the hard disk, the data read and write speed of the memory is several orders of magnitude higher. Therefore, reading and writing data from the memory can greatly improve the performance of the application compared to reading and writing data from the disk. Therefore, the memory database is widely used in computer, network communication and other fields for data sharing. [0003] The current memory database is based on configuration, that is, configure the memory database parameters (the size of the memory database space, the synchronization frequency of the memory database and the hard disk, etc.) before use. Once the memory database is started, the capacity of the memory database and the mem...

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Problems solved by technology

[0004] The present invention provides a data access system and its data access method to solve the problem that the memory database in the prior art is based on configuration. Once the memory database is started, its capacity is fixed and cannot be automatically expanded according to the usage of the memory database. In-memory database space problem

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