Can you explain the difference between a primary and a foreign key in a database?

Can you explain the difference between a primary and a foreign key in a database?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: easy

标签: interviewbit, publicis-sapient, company-specific

目标公司: Publicis Sapient

参考答案摘要

In a database, a primary key is a field or set of fields that uniquely identifies each row in a table. A foreign key is a field or set of fields in one table that refers to the primary key of another ...

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