DATABASE PROCESSING DEVICE, DATABASE PROCESSING METHOD, AND RECORDING MEDIUM

摘要

The database processing device includes: a column store database including a storage into which tuple data is stored in a unit of a column and a management structuring section into which first information indicative of a valid data range and second information including identification information of data that is already invalid are stored in terms of the storage; and a database processing section that, when performing a process of inserting data for the column store database, additionally affixes the data to an end of the storage to update the first information of the management structuring section, and when performing a process of deleting data for the column store database, additionally affixes identification information of deletion-target data to the second information of the management structuring section.