| 摘要 |
A method of transmitting a query to a database, the method including: maintaining a database gateway storing at least one query corresponding to a predetermined group identifier and a query identifier; maintaining a database list of a plurality of databases connected to the database gateway; receiving a group identifier and a query identifier associated with a certain query, from a client; identifying a query corresponding to the received group identifier and query identifier at the database gateway; transmitting the identified query to a corresponding database by referring to the database list; and performing data retrieval by using the transmitted query at the database and generating and transmitting retrieval result information to the database gateway as a reply.
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