Multi-version concurrency control method in database and database system
A control method and database technology, applied in the database field, can solve the problems of low efficiency and inconvenient reading of data pages
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[0072] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0073] An embodiment of the present invention provides a multi-version concurrency control method for a database, which is mainly performed by a database system, such as a distributed disk database system, a cluster database system, or a massively parallel processing (MPP) database system. etc., the flow chart is as figure 1 shown, including:
[0074] Step 101, receiving a data read request generated by a read transaction, the data read request is used to request to read a pa...
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