MongoDB 學習筆記2

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文檔模型關係 Model One-to-One Relationships with Embedded Documents Overview

Data in MongoDB has a flexible schema. Collections do not enfoce document structure.

Pattern

In the normalized data model, the address document contains a reference to the patron document.

If the address data is frequently retrivevd with name information, then with referencing, your application needs to issue multiple queries to resolve the reference. The better data model would to be embed the address data in the patron data, as in the following document:

 

Model One-to-Many Relationships with Embedded Documents OverviewPatternModel one-to-Many Relationships with Document References OverviewPattern

MongoDB 學習筆記2