What do you understand by self-referencing constraints?

What do you understand by self-referencing constraints?

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, mainframe, topic-specific

参考答案摘要

Self-referencing constraints are used for restricting changes that can be possibly made to a primary key using a foreign key. For achieving this, the foreign keys need to define the DELETE-CASCADE rul...

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