Final answer:
The statement is true; databases such as Microsoft SQL Server, Oracle, and PostgreSQL can store XML documents to hold additional attributes, providing flexibility in data storage and retrieval.
Step-by-step explanation:
The statement that some tables have the ability to store XML documents to hold additional attributes is true. Many modern databases support the storage of XML data. This capability allows for a flexible schema to accommodate additional information that may not fit into the regular columns of a table. An example of such a database management system that supports XML is Microsoft SQL Server, which allows for the XML data type and provides built-in functions to query and manipulate XML data. Similarly, Oracle and PostgreSQL are other examples of databases that can store and query XML data.