Execute Delete command and check the result : SqlCommand Delete « Database ADO.net « VB.Net






Execute Delete command and check the result

Execute Delete command and check the result
Imports System
Imports System.Data
Imports System.Data.SqlClient

public class MainClass
   Shared Sub Main()
      Dim thisConnection As New SqlConnection("server=(local)\SQLEXPRESS;" & _
          "integrated security=sspi;database=MyDatabase")

      'Create Command object
      Dim nonqueryCommand As SqlCommand = thisConnection.CreateCommand()

      Try
         ' Open Connection
         thisConnection.Open()
         Console.WriteLine("Connection Opened")

         'Create Command objects
         Dim scalarCommand As New SqlCommand("SELECT COUNT(*) FROM Employee", thisConnection)

         ' Execute Scalar Query
         Console.WriteLine("Before INSERT, Number of Employees = {0}", _
            scalarCommand.ExecuteScalar())


         ' Set up and execute DELETE Command
         nonqueryCommand.CommandText = _
            "DELETE FROM Employee WHERE " & _
            "Firstname='A' AND Lastname='A'"
         Console.WriteLine("Executing {0}", nonqueryCommand.CommandText)
         Console.WriteLine("Number of rows affected : {0}", _
            nonqueryCommand.ExecuteNonQuery())

         ' Execute Scalar Query
         Console.WriteLine("After Delete, Number of Employee = {0}", _
            scalarCommand.ExecuteScalar())

      Catch ex As SqlException
         ' Display error
         Console.WriteLine("Error: " & ex.ToString())
      Finally
         ' Close Connection
         thisConnection.Close()
         Console.WriteLine("Connection Closed")

      End Try
   End Sub
End Class

           
       








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