APPARATUS FOR OPERATING MULTIPLE DATABASES OF EMBEDDED DATABASE SYSTEM, AND METHOD THEREFOR

摘要

The present invention relates to an apparatus for operating multiple databases of an embedded database system, and a method therefor, the apparatus comprising: a plurality of databases into which a data page for storing data is loaded, and which grants a page ID to the data page; a connection manager for performing database access through a dynamic management including generation or removal of a database ID for each database when the at least one database is being operated; a plurality of query processors for generating a page request instruction including the database ID and the page ID so as to perform, on the data page, query processing including insertion, deletion, change, and retrieval of data; and a buffer manager, which selects a corresponding database from among the plurality of databases by using the database ID according to the page request instruction, and reads the data page from the selected database, by using the page ID, so as to cache and manage the data page.