DATAFILES is a mandatory clause for each external table. It specifies the file path where the data can be read from or written to.

DATAFILES是每个外部表的必需子句，它指定读写数据的文件路径。

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An objects clause may be inserted in the memorandum but is not mandatory.

目的条款可以规定在公司简章中，但并不是强制性的。

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It also announced a mandatory arbitration clause, forcing users to waive their rights to participate in a class action lawsuit except under very limited circumstances.

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