Aktualisierungsabfrage funktioniert nicht. Immer catch Syntax läuft

Question

Ich möchte einen Datensatz aktualisieren. Aber jedes Mal, wenn ich versuchte zu aktualisieren. Es geht um die Aussage. Ich kann das nicht finden, wenn meine Abfragesyntax ungültig ist.

Es geht immer Anweisung

Ich habe keine Ahnung zu fangen, dass entweder die Abfrage falsch ist oder ein Fehler in der Syntax.

if (IsPost) { 
    var value = Request.Form["value"]; 
    var Student_Reg_No = Request.Form["Student_Reg_No"]; 
    var Student_Name = Request.Form["Student_Name"]; 
    var Father_Name = Request.Form["Father_Name"]; 
    var Temporary_Address = Request.Form["Temporary_Address"]; 
    var Permanent_Address = Request.Form["Permanent_Address"]; 
    var Phone_No = Request.Form["Phone_No"]; 
    var Blood_Group = Request.Form["Blood_Group"]; 
    var Email_Address = Request.Form["Email_Address"]; 

    if (Validation.IsValid()){ 
     try{ 
      var db = Database.Open("site_data"); 
      var updateCommand = "Update site_data_table set Student_Reg_No =@0, Student_Name=@1, Father_Name=@2, Temporary_Address=@3,Permanent_Address=@4, Phone_No=@5, Blood_Group=@6, Email_Address=@7 where Id=@8)"; 
      db.Execute(updateCommand, Student_Reg_No, Student_Name, Father_Name, Temporary_Address, Permanent_Address, Phone_No, Blood_Group, Email_Address, value); 
      Response.Redirect("~/edit?id=success"); 
     } 
     catch{ 
      <textarea>Data is Not updated</textarea> 
     } 
    } 

} 

Answer 1

  var updateCommand = "Update site_data_table set Student_Reg_No =@0, Student_Name=@1, Father_Name=@2, Temporary_Address=@3,Permanent_Address=@4, Phone_No=@5, Blood_Group=@6, Email_Address=@7 where Id=@8)"; 

Wechsel zu

 var updateCommand = "Update site_data_table set Student_Reg_No =@0, Student_Name=@1, Father_Name=@2, Temporary_Address=@3,Permanent_Address=@4, Phone_No=@5, Blood_Group=@6, Email_Address=@7 where Id=@8";