Abstract: A non-transitory computer readable storage medium storing therein a control program that causes a computer to execute a process, the process includes selecting an operation execution log of an operation which is finished normally among a plurality of operation execution logs stored in a first storage in response to an operation which is executed for a second storage, and storing the operation execution log which is selected in a third storage for backup.

Abstract: A database system includes a first information processing device that accesses a first database, and a second information processing device that accesses a second database that is a standby system of the first database, wherein the first information processing device includes a processor that executes a process including transmitting to the second information processing device a query corresponding to regeneration target execution plan information among items of execution plan information for access to the first database, and the second information processing device includes a processor that executes a process including updating first information indicating characteristics of the second database in response to updating of data of the second database, regenerating the regeneration target execution plan information, based on the first information and the query, and transmitting the regenerated execution plan information to the first information processing device.

Abstract: A process control method for a database includes storing identification information of an updating processing in a first storage region in association with update data when executing the updating processing for updating data stored in the first storage region of the database to the update data, and storing the identification information and a confirmation time in association with each other in a second storage region that is different from the first storage region in response to a confirmation processing of the updating processing.

Abstract: An update method executed by a computer includes: recording a history of processes executed on records in a database in accordance with a request; generating a second index, respectively, for a plurality of new records added to the database in accordance with another request, by applying a storage position to a first index of the plurality of records respectively; and reflecting, to the second index, at least one process from among the processes, the at least one process being executed after a start of the generating of the second index.