How do you handle slowly changing dimensions (SCD Type 2)?
How do you handle slowly changing dimensions (SCD Type 2)?
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, sql, topic-specific, database
参考答案摘要
lowly Changing Dimension (SCD) Type 2 is a technique used to preserve the full history of changes in dimension tables. Instead of updating existing records, a new row is inserted whenever a tracked at...
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