一个分区键应该包括一至三个列。

A partitioning key should include one to three columns.

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通常表分区键是基于时间的列。

Usually the table partitioning key will be a time-based column.

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为何选择正确的分区键如此重要

Why choosing the right partitioning key is important

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另外，分区键仍然必须基于关系数据。

In addition, the partitioning key must still be based on relational data.

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不恰当的分区键可能导致数据分布不均匀。

An inappropriate partitioning key can cause uneven data distribution.

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分区键的定义不能修改。

The partitioning key definition cannot be altered.

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TP只对那些包括表分区键列的查询有利。

TP will only benefit those queries that include the table partitioning key column.

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在设计一个网格时，您需要仔细选择分区键。

When designing a grid, you need to choose your partition key carefully.

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要在CREATETABLE语句中指定表的分区键。

You define a partition key for a table on the CREATE TABLE statement.

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分区键是在一个表上用CREATEtable语句定义的。

A partitioning key is defined on a table with the CREATE table statement.

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分区的工作方式是对键计算散列码。

The way partitions really work is that a hash code is calculated on the key.

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最后，按一下enter键以创建新的分区。

Finally, I'll hit Enter to create the new partition.

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最后，按一下enter键以创建新的分区。

Finally, I'll hit Enter to create the new partition.

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