if the xmlvalidate is called without any schema specification, either the internal schema specification is used, or the dtd specification is used in its absence.
to do so, db2 uses the schema location specified with the include element, which is called the internal schema location in this article.
为此,db2使用include元素中指定的模式位置,这个位置在本文中称为内部模式位置。
for federated statements, this will be the mechanism that overwrites the document's internal schema specification if the schema information is not accessible by the db2 server.
对于联邦语句而言,如果模式信息不能由db2服务器访问,那么就会改写文档的内部模式规范。
if an external schema is specified, it overwrites the internal schema specification.