Explain SCD (Slowly Change Dimension).

Explain SCD (Slowly Change Dimension).

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: hard

标签: interviewbit, etl-testing, topic-specific, etl, testing

参考答案摘要

SCD (Slowly Changing Dimensions) basically keep and manage both current and historical data in a data warehouse over time. Rather than changing regularly on a time-based schedule, SCD changes slowly o...

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