TRANSACTION PROCESSING METHOD

摘要

A data processing method for performing a processing step on a data set. One or more data sets are stored in a database and each data set has an associated indicator entry in the database which indicates that the data set is ready for the processing step to be performed. The method comprises: (a) providing multiple parallel processing operations for performing the processing step on a respective data set, each processing operation arranged to perform an atomic database transaction for an indicator entry and associated data set. The atomic database transaction comprises: (i) operating on the indicator entry so that it no longer indicates that the data set is ready for the processing step to be performed; and (ii) performing the processing step on the data set associated with the indicator entry. The method further comprises (b) responsive to the presence of an indicator entry in the database which indicates that an associated data set is ready for processing, one of the multiple parallel processing operations performing the atomic database transaction for the indicator entry and associated data set.