| 摘要 |
<p>The present invention provides a method and an apparatus for a predictable logical data locality, in which mass amount of data is stored in an NoSQL based on a hybrid database, in which a typical RDBMS and NosQL is combined and shared, and a query of the shared mass amount of data is separated into regions, which do not overlap, in a process of performing the query in the RDBMS to query in parallel. The predictable logical data locality is a method of reducing a problem of not providing a parallel query which is generated during a process of performing the parallel query and an increase in a network load due to sharing a sharing table, and is configured to have a logical data locality, in which data of the sharing table is variable according to query characteristics in a process of analyzing the query. To this end, the method of the present invention analyzes the query inputted by a user and separates a sharing table individual query, a joint query of the sharing table and a copying table, and a joint table of the sharing table and a divided table to determine the logical data locality, and variably determines a method of dividing the sharing table according to the number of parallel processing.</p> |
