| 摘要 |
The invention provides a method of evaluating a query involving a relational database comprising a relational data-base management system (RDBMS), said query relating to at least one table of said relational database, said method comprising determining a table as a gateway table for evaluating said query, retrieving one or more unique identifiers of said gateway table related to one or more entries in a table to be queried, retrieving information from tables to be queried related to said retrieved unique identifiers of said gateway table, and providing a result set comprising the retrieved primary keys of the gateway table in relation to said retrieved information. The invention further provides a related data processing system and program.
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