Method and device for data interaction between non-relation type database and relation type database
A non-relational, database technology, applied in the Internet field, can solve problems such as difficulties, achieve strong novelty and originality, improve practicability and versatility
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[0020] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.
[0021] At present, among the existing theoretical results, the existing relational model (Relational model) for relational databases as the logical model and the entity-relationship model (Entity-relationship model) as the conceptual model can be fully described. Generally, An entity-relationship diagram can be used to describe the model of a relational database. The row-column based table structure of a relational database and the relationship between tables can be represented by a table relationsh...
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