Rich Rollman

Rich Rollman is vice president of engineering at DataConcert. He is the former lead program manager for XML at Microsoft, where he was responsible for SQL Server’s XML functionality and XML core technologies, including the parser, object model, and schema language.

Articles by Rich Rollman
Enhanced FOR XML
There’s more to Yukon’s XML improvements than just the XML data type. The new TYPE directive makes your FOR XML queries more powerful, flexible, and efficient.
Using the sql:key-fields Annotation
You can combat disorderly results from an XML View by using this simple solution.
Yukon’s XML Data Type 1
Roll out the red carpet! Yukon's on its way, bringing great news for XML users: an xml data type that brings better functionality than any earlier SQL Server release.
Using XML Bulk Load with Identity Columns 1
Bulk loading data into tables that use identity columns as primary keys used to require some sticky programming to properly set the value of foreign keys. See how XML Bulk Load has been enhanced in SQLXML 3.0 SP2 to automatically set foreign key values.
Optimizing XPath Queries
If you have an XML Schema, XML Views are the easiest way to obtain XML results from SQL Server. Find out how you can optimize your XPath queries by translating them into FOR XML EXPLICIT queries that you can include in stored procedures.
Use .NET to Store XML Data
ADO.NET's DataSet gives you the performance benefits of client-side technology for storing and accessing large amounts of XML data in SQL Server.
XML Query Results in .NET
XML views let you produce an XML query result from your database, but ADO.NET's DataSet and XMLDataDocument classes also provide this functionality--and more.
On the Edge 1
Edge tables can help you find data that's hidden in XML open content.
Querying Open Content
You’ve stored open content from your XML document in your database. Now you need to merge the content with relational data in an XML query result. Read on to see how you can use FOR XML Explicit queries and XML Views to return the open content.
"Open" XML Content
Sure, your XML app is running fine now. But what if you need to transmit a new type of data through the same app later? With open content, you don't even need to know it's there.
OpenXML's @mp:id Meta-property 5
Inserting hierarchical data from an XML document into relational tables that have primary key/foreign key relationships can be difficult. Read on to see how you can use OpenXML's @mp:id meta-property to overcome the challenge.
ID Attributes in XML Views
XML supports uniquely identifying entities and referencing those entities from other locations within an XML document. Find out how to reduce the size of an XML result by eliminating duplicate data when you express many-to-many relationships.
Defining XML Views
If you need to map columns to elements or attributes, chain relationship annotations, specify columns as unique keys, or signal that an element or attribute isn’t in the database, you need to use these annotations.
Filtering Values in XML Views
To organize your database, you usually normalize the data to maintain optimum performance. But XML documents aren’t normalized, they nest their elements instead. So how do you define an XML view on a normalized database? Read on.
Updategrams and Diffgrams
Current technologies still lack adequate support for building Web applications, so your best bet is to use the best tool for the job.
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