The following is my code for Access... can someone help me convert it to sql:
My Connectionstring is"server=(local);database=Database;trusted_connection=true"
<%
@.PageLanguage="VB" %><%
@.ImportNamespace="System.Data" %><%
@.ImportNamespace="System.Data.OleDb" %><
scriptlanguage="VB"runat="server">Sub btnLogin_OnClick(SrcAsObject, EAs EventArgs)Dim myConnectionAs OleDbConnectionDim myCommandAs OleDbCommandDim intUserCountAsIntegerDim strSQLAsStringstrSQL =
"SELECT COUNT(*) FROM tblLoginInfo " _&
"WHERE username='" & Replace(txtUsername.Text,"'","''") &"' " _&
"AND password='" & Replace(txtPassword.Text,"'","''") &"';"myConnection =
New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; " _&
"Data Source=" & Server.MapPath("login.mdb") &";")myCommand =
New OleDbCommand(strSQL, myConnection)myConnection.Open()
intUserCount = myCommand.ExecuteScalar()
myConnection.Close()
If intUserCount > 0ThenlblInvalid.Text =
""FormsAuthentication.SetAuthCookie(txtUsername.Text,
True)Response.Redirect(
"login_db-protected.aspx")ElselblInvalid.Text =
"Sorry... try again..."EndIfEndSub</
script>Reformatted code:
<%@. Page Language="VB" %>
<%@. Import Namespace="System.Data" %>
<%@. Import Namespace="System.Data.OleDb" %>
<script language="VB" runat="server">
Sub btnLogin_OnClick(Src As Object, E As EventArgs)
Dim myConnection As OleDbConnection
Dim myCommand As OleDbCommand
Dim intUserCount As Integer
Dim strSQL As String
strSQL = "SELECT COUNT(*) FROM tblLoginInfo " _
& "WHERE username='" & Replace(txtUsername.Text, "'", "''") & "' " _
& "AND password='" & Replace(txtPassword.Text, "'", "''") & "';"
myConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; " _
& "Data Source=" & Server.MapPath("login.mdb") & ";")
myCommand = New OleDbCommand(strSQL, myConnection)
myConnection.Open()
intUserCount = myCommand.ExecuteScalar()
myConnection.Close()
If intUserCount > 0 Then
lblInvalid.Text = ""
FormsAuthentication.SetAuthCookie(txtUsername.Text, True)
Response.Redirect("login_db-protected.aspx")
Else
lblInvalid.Text = "Sorry... try again..."
End If
End Sub
</script>
The query language used by SQL(Transact-SQL) is very similar to which used by Access. There is no need to modify the sql command in your case. Just modify the connection string to point to your sql server:
<%@. Import Namespace="System.Data.SqlClient" %>
...
Dim myConnection As SqlConnection
Dim myCommand As SqlCommand
...
myConnection = New SqlConnection("Data Source=myServerName\SqlInstanceName; Integrated Security=SSPI; Database=mydb;")
You can visithttp://www.connectionstrings.com, or refer to MSDN:
http://msdn2.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.connectionstring.aspx
|||Don't have to, but should:
<%@. Page Language="VB" %>
<%@. Import Namespace="System.Data" %>
<%@. Import Namespace="System.Data.SqlClient" %>
<script language="VB" runat="server">
Sub btnLogin_OnClick(Src As Object, E As EventArgs)
Dim myConnection As SqlConnection
Dim myCommand As SqlCommand
Dim intUserCount As Integer
Dim strSQL As String
strSQL = "SELECT COUNT(*) FROM tblLoginInfo WHEREusername=@.UserName AND password=@.Password"
myConnection = New SqlConnection({Your Sql Connection string})
myCommand = New SqlCommand(strSQL, myConnection)
myCommand.Parameters.add("@.UserName",sqldbtype.varchar).value=txtUserName.text
myCommand.Parameters.add("@.Password",sqldbtype.varchar).value=txtPassword.text
myConnection.Open()
intUserCount = myCommand.ExecuteScalar()
myConnection.Close()
If intUserCount > 0 Then
lblInvalid.Text = ""
FormsAuthentication.SetAuthCookie(txtUsername.Text, True)
Response.Redirect("login_db-protected.aspx")
Else
lblInvalid.Text = "Sorry... try again..."
End If
End Sub
</script>
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