什么是去规范化？
This de-normalization process is sometimes done for performance reasons.
这种反标准化的过程常常是由于性能的原因而进行的。
The de-normalization causes difficulty on data retrieval, analysis, and quality control.
这种不规范将为数据检索、分析和质量控制增加难度。
No one said this explicily, but I presume there is a lot of de-normalization going on if you are avoiding joins.
虽然没有人直说，但我想如果你要避免使用表连接，就会有很多去正规化工作。
In the absence of table joins, de-normalization is often used in HBase to keep related information in one table.
在缺乏表连接时，HBase通常使用去规范化(de - normalization)来将相关信息保存在一个表中。
If you do decide to de-normalize, be sure to document this thoroughly: describe in some detail, the reasoning behind the de-normalization steps that you took.
如果您确实打算反规范化，那么一定要为此制作完整文档：较详细地描述您所采取的反规范化步骤背后的原因。
Data normalization is always recommended in theory, but in practice over-normalization (or normalization without appropriate de-normalization) lead to reliance on joins for data retrieval.
从理论上来说，总是建议您保证数据的规范化；但是在实践中，过度的规范化(或者没有恰当反规范化的规范化)会导致对数据检索连接的依赖性。
Because business items are highly de-normalized and document centric, straight transformation from business items to a LDM without careful design and normalization could produce a poor LDM.
由于业务项高度不规范并以文档为中心，如果未经严谨设计和规范化，从业务项到LDM的简单转换将导致糟糕的LDM。
Secondly, the de-nosing problem and the normalization processing problem of the OFSMI signal are studied, according to the specific requirement for the signal at moderate optical feedback level.
其次，针对适度光反馈水平下参数测量对信号特征点的要求，研究了信号的去噪问题及归一化处理问题。
Secondly, the de-nosing problem and the normalization processing problem of the OFSMI signal are studied, according to the specific requirement for the signal at moderate optical feedback level.
其次，针对适度光反馈水平下参数测量对信号特征点的要求，研究了信号的去噪问题及归一化处理问题。
应用推荐