SQL databases are easy to query; XML documents are not.

SQL数据库容易查询，而XML文档则不是这样。

youdao

Its native XML data type is easy to query with SQL and W3C-standard XQuery.

使用SQL和W3C标准的XQuery对其原生xml数据类型进行查询非常简单。

youdao

It's very easy to query the database and to throw the results up on a web page.

它很容易就能查询数据库，并把结果在一个网页。

youdao

It is relatively easy to falsify the address from which a query was sent.

BBC: Viewpoint: How hackers could decapitate the internet