INSERT_UPDATE adds new input data to the table, or updates existing rows with input data that has matching primary key values.
INSERT_UPDATE将新的输入数据添加到表中,或者用具有匹配主键值的输入数据更新现有的行。
The best practice is to have many columns in a row, as opposed to linking different rows across different tables via key columns.
相对于通过键列跨不同的表链接不同行,最佳实践将是在一行中有许多列。
As with earlier releases of DB2, it is important to select a distribution key that evenly distributes rows across partitions.
与以前的DB 2版本一样,一定要通过选择分布键跨分区均匀地分布行。
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