This model decomposes a nested relational schema into a set of atomic schemas, each of them constitutes of a primary key or a primary key plus a non-primary attribute.
此模型将复杂的嵌套关系模式分解为由主键或主键和一个非主属性构成的原子模式集合。
This model decomposes a nested relational schema into a set of atomic schemas, each of them constitutes of a primary key or a primary key plus a non-primary attribute.
此模型将复杂的嵌套关系模式分解为由主键或主键和一个非主属性构成的原子模式集合。
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