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在阅读文档或代码注释时,可能会遇到术语o2mm2om2m。他们代表什么?

还有它们是什么意思?

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2 回答 2

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They are abbreviations of cardinalities used in data modeling for:

  • one to many
  • many to one
  • many to many

So obviously one may also encounter o2o for one to one relations.

于 2014-01-23T09:58:51.143 回答
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您还可以拥有 O2O:

  • 一对一 (O2O)
  • 一对多 (O2M)
  • 多对一 (M2O)
  • 多对多 (M2M)

技术缩写列表

于 2014-01-29T02:13:42.323 回答