BUG: The GetSchemaTable method of the SqlDataReader object returns the wrong column name (307512)

MORE INFORMATION

Steps to Reproduce the Behavior

Using Visual Basic .NET

1. Open Microsoft Visual Studio .NET, and create a new Visual Basic Console Application project.
2. Add the following code above Module Module1:

   Imports System.Data.SqlClient
   					

3. Add the following code to the Sub Main() procedure:

   Dim cnNwind As New SqlConnection("Data Source=ServerName;user id=username;" & _
                                    "Password=password;Initial Catalog=Northwind;")
           Dim cmd As New SqlCommand("Select * from Customers", cnNwind)
           cnNwind.open()
   
           Dim dr As SqlDataReader
           dr = cmd.ExecuteReader
           Dim i As Integer
           For i = 0 To dr.GetSchemaTable.Columns.Count - 1
   
           System.Console.WriteLine(dr.GetSchemaTable.Columns(i).ColumnName)
   
           Next
           System.Console.Read()        
           dr.Close()
           cnNwind.Close()
   					

4. Modify the connection string as appropriate for your Microsoft SQL Server.
5. Press the F5 key to compile and run the project. Notice that all of the columns of the SchemaTable appear in the Console window. In addition, notice that BaseServerName also appears before BaseCatalogName.

Using Visual C# .NET

1. Start Visual Studio .NET, and create a new Visual C# .NET Console Application project.
2. Add the following code to Class1 before the ConsoleApplication1 namespace:

   using System.Data;
   using System.Data.SqlClient;
   					

3. Add the following code to the static void Main(string[] args) procedure:

   SqlConnection cnNwind = new SqlConnection("Data Source=servername;user id=username;
                                             Password=password;Initial Catalog=Northwind;");
           SqlCommand cmd = new SqlCommand("Select * from Customers", cnNwind);
   	
           cnNwind.Open();
   
           SqlDataReader dr ;
   
   			dr = cmd.ExecuteReader();
   			DataTable dt = dr.GetSchemaTable();
   				for (int i=0;i<dt.Columns.Count;i++)
   				{
   					System.Console.WriteLine(dt.Columns[i]);
   				}
   				System.Console.Read();
   
                                   dr.Close();
                                   cnNwind.Close();
   			
   					

4. Modify the connection string as appropriate for your SQL Server computer.
5. Press the F5 key to compile and run the project. Notice that all of the columns of the SchemaTable appear in the Console window. In addition, notice that BaseServerName also appears before BaseCatalogName.

Using Visual C++ .NET

1. Start Visual Studio .NET, and create a Visual C++ .NET Managed Application project.
2. Add the following code before the int _tmain(void) procedure:

   #using <System.dll>
   #using <System.Data.dll>
   
   using namespace System;
   using namespace System::Data;
   using namespace System::Data::SqlClient ;
   					

3. Add the following code to the int -tmain(void) procedure:

   SqlConnection *cnNwind = new SqlConnection("Data Source=servername;user id=username;
                                              Password=password;Initial Catalog=Northwind;");
       SqlCommand *cmd = new SqlCommand("Select * from Customers", cnNwind);
   		 cnNwind->Open();
   
           SqlDataReader *dr ;
   		
   			dr = cmd->ExecuteReader();
   			DataTable *dt = dr->GetSchemaTable();
   			int i;
   			for (i=0;i<dt->Columns->Count;i++)
   				{
                                    Console::WriteLine(dt->Columns->Item [i]);
   				}
   				System::Console::Read();
   				dr->Close();
   				cnNwind->Close();
   			
                                   return 0;
   					

4. Modify the connection string as appropriate for your SQL Server computer.
5. Press the F5 key to compile and run the project. Notice that all of the columns of the SchemaTable appear in the Console window. In addition, notice that BaseServerName also appears before BaseCatalogName.

Using Visual J# .NET

1. Open Microsoft Visual Studio .NET, and create a new Visual J# Console Application project.
2. Add the following code to class1:

   import System.Data.*;
   import System.Data.SqlClient.*;
   					

3. Add the following code to main:

   	SqlConnection cnNwind = new SqlConnection("Data Source=servername;user id=username;Password=password;Initial Catalog=Northwind;");
   		SqlCommand cmd = new SqlCommand("Select * from Customers", cnNwind);
   	
   		cnNwind.Open();
   
   		SqlDataReader dr ;
   
   		dr = cmd.ExecuteReader();
   		DataTable dt = dr.GetSchemaTable();
   		for (int i = 0; i < dt.get_Columns().get_Count(); i++)
   		{
   			DataColumnCollection dcc = dt.get_Columns();
   			System.Console.WriteLine(dcc.get_Item(i));
   		}
   		System.Console.Read();
   	
   		dr.Close();
   		cnNwind.Close();
   					

4. Modify the connection string as appropriate for your SQL Server computer.
5. Press the F5 key to compile and run the project. Notice that all of the columns of the SchemaTable appear in the Console window. In addition, notice that BaseServerName also appears before BaseCatalogName.