DATABASE SYSTEM, DATABASE MANAGEMENT METHOD, DATABASE STRUCTURE, AND STORAGE MEDIUM

摘要

Provided is a database system capable of efficiently and rapidly updating data in a database. The database system has a data processing unit that performs, to the database, data processing base on a query. The database includes an identifier table storing data identifiers each having a fixed length and uniquely representing entity data themselves and a conversion table. The conversion table shows a correspondent relationship between the data identifiers and position data each indicating a position of a storage area of the entity data. The conversion table has a metadata area Fidx, and the metadata area Fidx stores a tuple identifier uniquely designating a tuple that stores each of the data identifiers in the identifier table.