Multi-version concurrency control method of database and database system
A control method and database technology, applied in the database field, can solve problems affecting database performance and transaction processing efficiency reduction, and achieve the effects of improving transaction processing efficiency, reducing resource competition, and good transaction throughput
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[0022] Exemplary embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the present application, rather than exhaustive of all the embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.
[0023] The embodiment of this application provides a multi-version concurrency control method for a database. figure 1 A flow chart of the multi-version concurrency control method is shown, and the flow includes:
[0024] S100. Generate a transaction ID for the target transaction when the target transaction is started.
[0025] S200. Obtain a logical snapshot of the database, where the logical snapshot includes the transaction ID of the latest completed transaction corresponding to each worker thread running in the database.
[0026]...
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