Define unary operations in Relational Algebra in context to SQL.

Define unary operations in Relational Algebra in context to SQL.

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, tech-mahindra, company-specific

目标公司: Tech Mahindra

参考答案摘要

Single operand operations are known as unary operations in Relational Algebra. In relational algebra, the operations PROJECTION and SELECTION and RENAME are unary operations: SELECT: The SELECT operat...

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