Beginning Microsoft SQL Server 2008 ... - S3 Tech Training

Chapter 16: A Brief XML Primer
SQL Server strips out any whitespace between tags, so if you create a schema collection with all sorts of
pretty indentations for readability, SQL Server will remove them for the sake of efficient storage.
Creating, Altering, and Dropping XML Schema Collections
The CREATE, ALTER, and DROP notions for XML schema collections work in a manner that is mostly consistent
with how other such statements have worked thus far in SQL Server. We’ll run through them
here, but pay particular attention to the ALTER statement, as it is the one that has a few quirks we
haven’t seen in other ALTER statements we’ve worked with.
CREATE XML SCHEMA COLLECTION
490
Again, note that the default number of characters returned for text results in Management
Studio is only 256 characters. If you’re using text view, you will want to go
Tools ➪ Options ➪ Query Results ➪ SQL Server ➪ Results to Text and change the
maximum number of characters displayed.
Again, the CREATE is your typical CREATE syntax that we’ve seen
throughout the book, and uses the AS keyword we’ve seen with stored procedures, views, and other less
structured objects:
CREATE XML SCHEMA COLLECTION [.]
AS { | }
So if, for example, we wanted to create an XML schema collection that is similar to the Production
.ManuInstructionsSchemaCollection collection in AdventureWorks2008, we might execute something
like the following:
CREATE XML SCHEMA COLLECTION ProductDescriptionSchemaCollectionSummaryRequired
AS
‘