Data in MongoDB has a flexible schema. MongoDB中的数据具有灵活的架构。Collections do not enforce document structure by default. 默认情况下,集合不强制文档结构。This flexibility gives you data-modeling choices to match your application and its performance requirements.这种灵活性为您提供了数据建模选项,以匹配应用程序及其性能需求。
The core documentation detailing the decisions you must make when determining a data model, and discussing considerations that should be taken into account.核心文档详细说明了在确定数据模型时必须做出的决策,并讨论了应考虑的因素。