Executes the command text against the connection.
      Visual Basic syntax
         
         
            Protected Overrides Function 
            ExecuteDbDataReader
            (ByVal behavior As CommandBehavior)
             As DbDataReader
            
         
      
      C# syntax
         
         
            protected override DbDataReader
             
            ExecuteDbDataReader
            (CommandBehavior behavior)
         
      
      Parameters
         
         
            - 
               behavior – 
               An instance of System.Data.CommandBehavior.
            
 
         
       
      Returns
         A System.Data.Common.DbDataReader.