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Thread: [RESOLVED] Updating SQL Database Table

  1. #1

    Thread Starter
    Addicted Member
    Join Date
    Sep 2011
    Buckingham, England

    Resolved [RESOLVED] Updating SQL Database Table

    I am trying to update the password field in a table called tb_Users for a given username. The following code works fine when I use literal values for the new password and for the Username.

    Imports System.Data.SqlClient
    Public Class PasswordForm
    Private Sub ContinueButton_Click(sender As System.Object, e As System.EventArgs) Handles ContinueButton.Click
    If TextBox1.Text = TextBox2.Text Then
    Me.Label4.Visible = False
    Dim SQLStr As String
    Dim ConnString As String
    ConnString = "Data Source=mikespc\sqlexpress; Initial Catalog=db_PigginGifts; Integrated Security=True"
    'SQL Staments
    'SQL query = myQuery = "SQL Statment"
    SQLStr = "UPDATE tb_Users SET Password = 'whogoesthere' Where Username = 'Joe Blogs'"
    'Write to SQL
    Dim SQLConn As New SqlConnection() 'The SQL Connection
    Dim SQLCmd As New SqlCommand() 'The SQL Command
    SQLConn.ConnectionString = ConnString 'Set the Connection String
    SQLConn.Open() 'Open the connection
    SQLCmd.Connection = SQLConn 'Sets the Connection to use with the SQL Command
    SQLCmd.CommandText = SQLStr 'Sets the SQL String
    SQLCmd.ExecuteNonQuery() 'Executes SQL Commands Non-Querys only
    SQLConn.Close() 'Close the connection
    Me.Label4.Visible = True
    End If
    End Sub

    How do I substitute the characters 'whogoesthere' for the contents of a TextBox called TextBox1 and the characters 'Joe Blogs' with the contents of a public varialble called PubUsers ?

  2. #2
    PowerPoster techgnome's Avatar
    Join Date
    May 2002

    Re: Updating SQL Database Table

    one word: Parameters

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  3. #3
    A SQL Server fool GaryMazzone's Avatar
    Join Date
    Aug 2005

    Re: Updating SQL Database Table

    Also password is a reserved word and should nkt be used as a field name. If it can not be changed then it must be enclosed in square brackets
    Sometimes the Programmer
    Sometimes the DBA


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