A. The degree of uniqueness is not critical to efficiency.
B. When choosing a primary index you should pick a column with a severely limited value set.
C. If distribution is skewed an all-AMP operation will take longer than if all AMPs were evenly utilized.
D. Selecting a NUPI for storing data provides for maximum efficiency and makes the best use of the parallel features of Teradata.
B. When choosing a primary index you should pick a column with a severely limited value set.
C. If distribution is skewed an all-AMP operation will take longer than if all AMPs were evenly utilized.
D. Selecting a NUPI for storing data provides for maximum efficiency and makes the best use of the parallel features of Teradata.
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