Note that you must have the explain tables created before this example.

请注意，在开始这个例子之前，您必须先创建解释表。

youdao

The db2exfmt tool is used to format the contents of the explain tables.

db 2 exfmt工具用于格式化解释表的内容。

youdao

You must have the explain tables created before you follow this example.

在继续进行本示例之前，您必须先创建解释表。

youdao

Each senator sits on three or four committees and even more subcommittees, most of which meet during the same morning hours, which helps explain why committee tables are often nearly empty, and why senators drifting into a hearing can barely sustain a coherent line of questioning.

NEWYORKER: The Empty Chamber