WRITING DELAY DATABASE MANAGING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a database management system for managing a relational database by improving update performance in system operation while keeping performance capable of responding fast to a high-level retrieving request. SOLUTION: A data holding means 4 for retrieval processes retrieval operation fast and changing operation slowly, and a data holding means 5 for insertion and a data holding means 6 for deletion processes retrieval operation slowly and changing processing fast. A data transferring means 7 transfers data to the means 4 from the means 5 and 6 for reflecting data processed by the means 5 and 6. A database operation request processing means 3 performs the operation requests sorting to an inputted database respectively to the means 4, 5 and 6 for performance. A transaction processing 2 ensures the integrity of data between a data transaction means and a database operation request processing means 2.