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Question 11: You create an application by using the Microsoft .NET Framework 3.5 and Microsoft ADO.NET.
The application contains a DataSet object named orderDS. The object contains a table named Order as
shown in the following exhibit.
The application uses a SqlDataAdapter object named daOrder to populate the Order table.
You write the following code segment. (Line numbers are included for reference only.)
01 Private Sub FillOrderTable(ByVal pageIndex As Integer)
02 Dim pageSize As Integer = 5
03
04 End Sub
You need to fill the Order table with the next set of 5 records for each increase in the pageIndex value.
Which code segment should you insert at line 03?
A. Dim sql As String = "SELECT SalesOrderID, CustomerID, " + _
"OrderDate FROM Sales.SalesOrderHeader"
daOrder.SelectCommand.CommandText = sql
daOrder.Fill(orderDS, pageIndex, pageSize, "Order")
B. Dim startRecord As Integer = (pageIndex - 1) * pageSize
Dim sql As String = "SELECT SalesOrderID, CustomerID, " + _
"OrderDate FROM Sales.SalesOrderHeader"
daOrder.SelectCommand.CommandText = sql
daOrder.Fill(orderDS, startRecord, pageSize, "Order")
C. Dim sql As String = _
String.Format("SELECT TOP {0} SalesOrderID, " + _
"CustomerID, OrderDate FROM Sales.SalesOrderHeader " + _
"WHERE SalesOrderID > {1}", pageSize, pageIndex)
daOrder.SelectCommand.CommandText = sql
daOrder.Fill(orderDS, "Order")
D. Dim startRecord As Integer = (pageIndex - 1) * pageSize
Dim sql As String = _
String.Format("SELECT TOP {0} SalesOrderID, " + _
"CustomerID, OrderDate FROM Sales.SalesOrderHeader " + _
"WHERE SalesOrderID > {1}", pageSize, startRecord)
daOrder.SelectCommand.CommandText = sql
daOrder.Fill(orderDS, "Order")
Correct Answer: B