Why Multi-load doesn't support USI (Unique Secondary Index) instead of NUSI (Non-Unique Secondary Index)?
Why Multi-load doesn't support USI (Unique Secondary Index) instead of NUSI (Non-Unique Secondary Index)?
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, teradata, topic-specific, data-warehouse
参考答案摘要
Teradata allows all AMP (Access Module Processors) to operate independently. With USI, the index subtable would have to be present on multiple AMPs, which would require communication between AMPs. But...
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