If this option is not explicitly specified, DB2 by default USES two table parallelism (as if you have specified the parallel table 2 option).
如果不显式地指定该选项，DB 2默认地使用两个表的并行度(parallel table 2选项)。
The parallel table option tells the redistribute utility to perform parallelism at the table level where multiple tables are redistributed at the same time.
PARALLEL TABLE选项告诉重分发实用程序，在表级并行执行重分发，并同时重分发其中的多个表。
In the sessions, try to update location data and department names in the table department in parallel.
在会话中，试着同时更新department表中的位置数据和部门名称。
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