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foreign key

  • 外键:关系型数据库中的一个概念,指一个表中的一个或多个字段,它们的值必须在另一个表中的主键中存在,以确保数据的完整性和一致性。

专业释义英英释义

  • 外键码
    外来键
    外部键
    外键
    外区键
    外来关键码
    外来索引键
    外健
  • 外码

·2,447,543篇论文数据,部分数据来源于NoteExpress

Foreign key

  • abstract: In the context of relational databases, a foreign key is a field (or collection of fields) in one table that uniquely identifies a row of another table. In other words, a foreign key is a column or a combination of columns that is used to establish and enforce a link between the data in two tables.

以上来源于: WordNet

双语例句原声例句权威例句

  • Cross-column analysis for foreign key discovery.

    用于发现分析

    youdao

  • Non-identifying optional foreign key relationship.

    非标识可选关系

    youdao

  • All DOC_IDs are unique to meet the foreign key constraints.

    所有DOC_ID都惟一的满足约束

    youdao

更多双语例句
  • "The key to long term success in this area is our outreach with foreign governments."

    VOA: standard.2010.07.23

  • But some Democratic lawmakers contend the long-term key to defeating the insurgency in Afghanistan is not to send more foreign troops, but to speed training of Afghan security forces.

    VOA: standard.2009.10.25

  • "It depends on what the Egyptians will do out of it and how they focus the investment foreign policy-wise in key spaces which are relevant to national security issues where Egypt has a greater chance of success."

    VOA: standard.2009.11.03

更多权威例句
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