Stored Procedures in VB.NET

The data provider is a set of components that include the Connection, Command, DataReader, and DataAdapter Objects. The command Object provides a number of Execute methods that can be used to perform the SQL queries in a variety of fashions.

A stored procedure is a precompiled executable object that contains one or more SQL statements. A sample Stored Procedure is given below :

CREATE PROCEDURE SPPUBLISHER AS SELECT PUB_NAME FROM publishers

GO

The above code create a procedure named as 'SPPUBLISHER' and it execute SQL statement that select all publisher name from publishers table from the PUB database.

Using stored procedures, database operations can be encapsulated in a single command, optimized for best performance, and enhanced with additional security. To call a stored procedure from VB.NET application, set the CommandType of the Command object to StoredProcedure.

command.CommandType = CommandType.StoredProcedure From the following source code you can see how to call a stored procedure from VB.NET application
This is code :
//////

Imports System.Data.SqlClient Public Class Form1   Private Sub Button1_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles Button1.Click   
Dim connetionString As String
Dim connection As SqlConnection
Dim adapter As SqlDataAdapter
Dim command As New SqlCommand
Dim ds As New DataSet
Dim i As Integer  
  connetionString = "Data Source=servername;_
Initial Catalog=PUBS;User ID=sa;Password=yourpassword"
connection = New SqlConnection(connetionString)
 connection.Open()
command.Connection = connection
command.CommandType = CommandType.StoredProcedure
command.CommandText = "SPPUBLISHER"
adapter = New SqlDataAdapter(command)
adapter.Fill(ds) 
For i = 0 To ds.Tables(0).Rows.Count - 1
MsgBox(ds.Tables(0).Rows(i).Item(0))
Next   connection.Close()   End Sub  End Class
//////////