Abstract: The present invention provides a data searching method of database, apparatus and computer program for the same. The data searching apparatus of a database includes: a storage unit configured to store graph data; and a controller configured to store physical location information in which vertex and edge information included in the graph data is stored in the storage unit, and perform a search for the vertex and the edge based on the physical location information. Thereby, it is possible to efficiently search the data by improving a search speed of a graph, minimize the update of the information even when a storage location of the data is changed, and facilitate query by the graph data regardless of types of the database and a storage structure, and efficiently use a storage space.

Abstract: The present invention provides a database capable of integrated query processing and a data processing method thereof. The database capable of integrated query processing includes: a storage unit configured to store data including relational data, and graph data; a converter configured to convert a query language for a property graph data model for processing the graph data into a relational algebra that is a statement in an intermediate stage; and a controller configured to control the converter so as to convert the query language for the property graph data model in an input integrated query into a syntactic statement structure, and convert the query language for the property graph data model included in the query into the relational algebra, when the integrated query, in which the query language for the property graph data model and the relational query language are mixed, is input.

Abstract: The present invention provides a data searching method of database, apparatus and computer program for the same. The data searching apparatus of a database includes: a storage unit configured to store graph data; and a controller configured to store physical location information in which vertex and edge information included in the graph data is stored in the storage unit, and perform a search for the vertex and the edge based on the physical location information. Thereby, it is possible to efficiently search the data by improving a search speed of a graph, minimize the update of the information even when a storage location of the data is changed, and facilitate query by the graph data regardless of types of the database and a storage structure, and efficiently use a storage space.