提出了一种多数据库系统的模式映射方法，并对水平映射、垂直映射、混合映射、相关映射和局部映射给出了一种统一的形式化描述。
A method of schema mapping in multidatabase systems was introduced and an uniform formalized definition for horizontal, vertical, mixed, correlative and local mappings was given.
提出了一种多数据库系统的模式映射方法，并对水平映射、垂直映射、混合映射、相关映射和局部映射给出了一种统一的形式化描述。
A method of schema mapping in multidatabase systems was introduced and an uniform formalized definition for horizontal, vertical, mixed, correlative and local mappings was given.
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