Your company frequently receives product information from external vendors in the form of XML data. You receive XML document files, an .xdr schema file, and an .xsd schema file. You need to write code that will create a typed DataSet object on the basis of product information. Your code will be used in several Visual Studio .NET applications to speed up data processing. You need to create this code as quickly as possible. What should you do?

Your Microsoft SQL Server database contains a table named Regions. Regions contains all the sales regions for a sales-tracking application. You create a DataSet object named regionsDataSet by using a SqlDataAdapter object named myDataAdapter. This object uses a single SQL SELECT statement to populate the regionsDataSet. You bind regionsDataSet to a DataGrid object named regionsDataGrid to display the contents of Regions. You now want to use the same regionsDataSet, myDataAdapter, and regionsDataGrid to insert, update, and delete data in Regions. You want to accomplish this task by writing the minimum amount of code. What should you do?

You have a DataSet object named ordersDataSet. This object contains two

DataTable objects named Orders and OrderDetails. Both Orders and OrderDetails contain a column named OrderID.

You create a DataRelation object named orderRelation between Orders and OrderDetails on OrderID. Orders is the parent table. OrderDetails is the child table.

You add orderRelation to the ordersDataSet relation collection by using the following line of code:
ordersDataSet.Relations.Add(orderRelation);

You verify that prior to adding orderRelation, there were no constraints on either table. You then run the line of code.

How many constraints does each table have now?

You are developing an order-processing application that retrieves data from a Microsoft SQL Server database. The database contains a table named Customers and a table named Orders.

Customers has a primary key of CustomerID. Each row in Orders has a CustomerID that indicates
which customer placed the order.

Your application uses a DataSet object named ordersDataSet to capture customer and order information before it is applied to the database. The ordersDataSet object has two DataTable objects named Customers and Orders.

You want to ensure that a row cannot exist in the Orders DataTable object without a matching row existing in the Customers DataTable object.

Which two actions should you take? (Each correct answer presents part of the solution. Choose two.)

You create an XML Web service that retrieves data from a Microsoft SQL Server database. You instantiate a SqlConnection object named myConnection and set the Max Pool Size property of the connectionString to 50.

All 50 connections are now in use. However, a request for connection number 51 is received.

What is the most likely result?

You have a strongly typed DataSet object named myDataSet. This object contains three DataTable objects named Customers, Orders, and OrderDetails.

Customers and Orders have a data column named CustomerID. Orders and OrderDetails have a data column named OrderID.

Orders has a foreign key constraint between Customers and Orders on CustomerID. OrderDetails has a foreign key constraint between Orders and OrderDetails on OrderID.

You want to populate Customers, Orders, and OrderDetails with data from a Microsoft SQL Server database.
In which order should you fill the DataTable objects?