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摘要

A method, system and program providing comprehensive bilateral translation between text format and visual format relational database queries. In a preferred form, tables and lists are configured to define a common data structure. Translation between structured query language (SQL) query statements and the common data structure is accomplished by clause. Similarly, a common data structure for the visual or graphical format queries is defined, preferably employing graphics symbols and multiple windows. Bidirectional translation is thereafter accomplished through the common data structure. The method, system and program is comprehensive in the SQL clauses available, together with providing full resources for hierarchical subselect clauses.