SQLXML Managed Classes Object Model
SQLXML Managed Classes are wrappers around the native SQLXML classes, exposing the SQLXML 4.0 functionality inside the .NET Framework. These Managed Classes make it easier for developers to move their current SQLXML native code to .NET. The SQLXML Managed Classes object model exposes three objects that provide all of the SQLXML functionality needed to gain access to XML data from SQL Server from within your .NET application. The three objects are as follows The SqlXmlCommand object is the class...
SchemaGen Property
The SchemaGen property dictates whether the target tables are created prior to performing the bulk load operation. When you set this property to TRUE, the Bulk Load utility retrieves the list of tables and column names from the mapping schema and creates them prior to the bulk load operation. The syntax for the SchemaGen property is as follows Dim objBulkLoad As SqlXmlBulkLoad.SQLXMLBulkLoad4Class New _ SqlXmlBulkLoad.SQLXMLBulkLoad4Class This property does not create the PRIMARY KEY...
SqlXml Class
The SqlXml class is a new class in the System.Data.SqlTypes namespace. This class represents XML data retrieved from, or stored in, SQL Server. One of the benefits of the SqlXml class is that it contains an instance of the XmlReader-derived type, providing fast, forward-only access to XML data. The SqlXml class implements the INullable interface, allowing SqlTypes to contain null values. The general syntax for using the SqlXml class is as follows Dim xml As SqlXml The SqlXml class, a method of...
Go Qvd
INSERT INTO Motocross MotocrossID, Motocrossinfo lt Team Manufacturer Yamaha gt lt Rider BikeSize 250 gt Tim Ferry lt Rider gt lt Rider BikeSize 250 gt Chad Reed lt Rider gt lt Rider BikeSize 250 gt David Vuillemin lt Rider gt lt Team gt lt Team Manufacturer Honda gt lt Rider BikeSize 450 gt Kevin Windham lt Rider gt lt Rider BikeSize 250 gt Mike LaRacco lt Rider gt lt Rider BikeSize 250 gt Jeremy McGrath lt Rider gt lt Team gt lt Team Manufacturer Suzuki gt lt Rider BikeSize 250 gt Ricky...
Setting Up the xml data type for Reporting
The first area of focus for the team is reporting. They have broken down the tasks to three main steps 1. Creating the XML schema collection 2. Creating the necessary table First, the team needs to create the schema collection that will be used for the selected reports. The developers have decided that they want the XML formatted specifically for each report, so they want the schemas created accordingly. Before creating the schemas, they decide what the XML for each report should look like. The...
ExecuteXmlReader
The purpose of the ExecuteXmlReader method is to tell the connection which type of command will be executed via the CommandText property, and then build an XmlReader object. The CommandText property can either be an in-line T-SQL statement or a stored procedure. The ExecuteXmlReader method has been around for a while, but with ADO.NET 2.0 and SQL Server 2005, it gets even better. With SQL Server 2005, you now have the ability to retrieve an XML result set that contains a single row and single...
Info Esy
Because multiple values were returned, the PROPERTY index was utilized in the query. The PROPERTY index kicks into play with the value method of the xml data type. It is also beneficial to know the primary key, in this case the ProductID column. Secondary indexes are a great way to improve query performance, especially when the size of the XML instance is large. Because multiple secondary indexes can be applied to a column, it is a good idea to apply the different types as needed. The secondary...