For testing, you should grab a database dump of your production environment from a certain point in time so that you have something to test with.
为了测试，您应该从您的生产环境的某个时点抓取一个数据库转储，以便您拥有可以测试的数据。
XML, as you well know, is an extremely verbose format, and an XML dump of a large database would generate an even larger collection of XML documents.
您已经知道，XML 是一种非常冗长的格式，大型数据库的 XML 转储会生成更大的 XML 文档集合。
Dump: Show everything in the database, just like tdbdump.
dump：显示数据库中的所有内容，就像tdbdump。
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