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Example 8-2 shows an example of allowing an Sql Data Adapter object to infer the SQL ' Open a database connection. If any of these properties had been set on the Sql Data Adapter object, those values would have been used instead. Dim str Connection As String = _ "Data Source=localhost; Initial Catalog=Northwind;" _ & "Integrated Security=True" Dim cn As Sql Connection = New Sql Connection(str Connection) cn. The Sql Command Build Object can be examined to see what commands were created. Note: Keep in mind that this Update is different than a SQL UPDATE statement.To insert, update, and delete data using a Data Adapter, you create an Ole Db Command object with INSERT, UPDATE, and DELETE statements and set the Insert Command, Update Command, and Delete Command properties of the data adapter to Ole Db Command.To propagate changes, additions, and deletions back to a data source, call the Sql Data Adapter class's Update method, passing the Data Set and the name of the table that is to be updated. Update(ds, "Categories") ' Close the database connection. Close( ) Step 5 forces the Sql Command Builder object to generate SQL statements for performing the database update, insert, and delete operations. Select("Category Name = 'Dairy Products'")(0) ' Change the value in the Description column.For example, the following call to Update writes changes from the Data Table named Categories back to the SQL Server table of the same name: statement that was provided to the Sql Data Adapter object or can be explicitly provided to the Sql Data Adapter object. When the Update method is called, the Sql Data Adapter object notes that no values have been set for its Update Command, Insert Command, and Delete Command prperties, and therefore queries the Sql Command Builder object for these commands. row("Description") = "Milk and stuff" ' Perform the update. Update(ds, "Categories") ' Close the database connection.

For example, if you call Delete on a row on the Data Set, then when Update is called on the Data Adapter, the Delete Command of the Data Adapter will be called using the particular row in the Data Set.If you spot a rule that is out of date, please email or if you are cool tweet me,or one of the people in above acknowledgements.SSW Consulting has over 25 years of experience developing awesome Microsoft solutions that today build on top of Angular JS, Azure, TFS, Share Point, . With 40 consultants in 5 countries, we have delivered the best in the business to more than 1,000 clients in 15 countries.The Add New method of the Data Table adds a row to a Data Table.To change an existing row's data, you can directly assign a row's value.You can avoid building Command objects manually by using Command Builder.