Applet connecting to MS SQL Database (Remote DataSourse)

Hello,
I started by building my interface to a Database within an Application. I am not to the point where I am ready to make it an applet but want to get some tips when the time comes very soon.
First of all what security issues do I have to deal with to let the applet connect to the database?
Second I currently created a local Datasource via ODBC call JavaDB and linked it to my MS SQL Database.
QUESTION
How do I link to the with a remote Datasource so that the local machine does not have to worry about the datasource.
Lastly can I use the "sun.jdbc.odbc.JdbcOdbcDriver" in an applet. I sure hope so...
Then the part of my code that connected to the database was this:
private void initDB(){
String url = "jdbc:ODBC:JavaDB";
Connection con;
String query = "select * from COFFEES";
Statement stmt;
try {
//Class.forName("myDriver.ClassName");
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
try {
con = DriverManager.getConnection(url, DBADM, DBPWD);
stmt = con.createStatement();
ResultSet rs = stmt.executeQuery(query);
ResultSetMetaData rsmd = rs.getMetaData();
System.out.println("");
int numberOfColumns = rsmd.getColumnCount();
for (int i = 1; i <= numberOfColumns; i++) {
 if (i > 1) System.out.print(", ");
 String columnName = rsmd.getColumnName(i);
 System.out.print(columnName);
System.out.println("");
while (rs.next()) {
 for (int i = 1; i <= numberOfColumns; i++) {
 if (i > 1) System.out.print(", ");
 String columnValue = rs.getString(i);
 System.out.print(columnValue);
 System.out.println("");
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.print("SQLException: ");
System.err.println(ex.getMessage());
Thanks,
Kenny

Kenny,
As no one has replied, I've managed to implement a database that uses applets.
Firstly, one needs to obtain a JSP server (apache tomcat is free and can be configured into a IIS 4 server).
Secondly, write all the DB connection stuff within a jsp page (ex.) "builders.jsp"
<%@ page import="java.sql.*" %>
<%!
protected String driver="sun.jdbc.odbc.JdbcOdbcDriver";
protected String url="jdbc:odbc:PhotoDBase";
protected String userid=null;
protected String passwd=null;
%>
<html><head><title>Builder Example</title></head><body>
<%!
public static String GET_BUILDER_QUERY =
"SELECT * FROM BuilderInfo WHERE BuilderID =?";
%>
<%
String bID = "24"; //normally this would use
//request.Parameter("bID");
//in order to pull up a specific
//record. In this test case it is
//hard coded to pull only builder #24
%>
<%
Class.forName(driver);
Connection conn = DriverManager.getConnection(url, userid, passwd);
PreparedStatement stmt = conn.prepareStatement(GET_BUILDER_QUERY);
stmt.setString(1, bID);
ResultSet rs = stmt.executeQuery();
rs.next();
 String buildID = rs.getString("BuilderID");
 String bName = rs.getString("BuilderName");
 String bAddress = rs.getString("Address");
 String bCity = rs.getString("City");
 String bState = rs.getString("State");
 String bZip = rs.getString("Zip");
 String bCName = rs.getString("ContactName");
 String bCLast = rs.getString("ContactLast");
 String bPhone = rs.getString("Phone");
 String bFax = rs.getString("Fax");
 String bMobile = rs.getString("Pager/Cell");
rs.close();
stmt.close();
if (bName == null)
 bName = "No Builder";
if (bAddress == null)
 bAddress = "N/A";
if (bCity == null)
 bCity = "N/A";
if (bState == null)
 bState = "N/A";
if (bZip == null)
 bZip = "N/A";
if (bCName == null)
bCName = "N/A";
if (bCLast == null)
 bCLast = "N/A";
if (bPhone == null)
 bPhone = "N/A";
if (bFax == null)
bFax = "N/A";
if (bMobile == null)
bMobile = "N/A";
%>
Builder: <%= bName%> BuilderID #: <%= buildID%>
 Contact: <%= bCName%> <%= bCLast%>
 Address: <%= bAddress%>
 <%= bCity%>, <%= bState%> <%= bZip%>
 Phone: <%= bPhone%>
 Fax: <%= bFax%>
 Mobile: <%= bMobile%>
<applet code="Build.class" width="600" height="300">
<param name=buildID value=<%= buildID%>>
<param name=bName value="<%= bName%>">
<param name=bAddress value="<%= bAddress%>">
<param name=bCity value="<%= bCity%>">
<param name=bState value="<%= bState%>">
<param name=bZip value="<%= bZip%>">
<param name=bCName value="<%= bCName%>">
<param name=bCLast value="<%= bCLast%>">
<param name=bPhone value="<%= bPhone%>">
<param name=bFax value="<%= bFax%>">
<param name=bMobile value="<%= bMobile%>">
</applet>
</body>
</html>
The jsp gets the data from the DB based on the parameter bID which would be passed to it via a search or input page with various error checking included.
The applet then recieves its data via parameters. (Build.class has been shortened here to show you the meat and potatoes of the whole deal)
//<applet code="Build.class" width="600" height="300"></applet>
import java.awt.*;
import java.awt.Event;
import java.applet.Applet;
import java.io.*;
public class Build extends java.applet.Applet {
protected Panel search ;
protected TextField Nametxt ;
protected TextField Loctxt ;
protected TextField Citytxt ;
protected TextField Statetxt ;
protected TextField Ziptxt ;
protected TextField CNametxt ;
protected TextField CLasttxt ;
protected TextField Phonetxt ;
protected TextField Faxtxt ;
protected TextField Celltxt ;
public Build(){
super();
search = new Panel();
Nametxt = new TextField();
Loctxt = new TextField();
Citytxt = new TextField();
Statetxt = new TextField();
Ziptxt = new TextField();
CNametxt = new TextField();
CLasttxt = new TextField();
Phonetxt = new TextField();
Faxtxt = new TextField();
Celltxt = new TextField();}
public void init(){
 BorderLayout bl = new BorderLayout();
 setLayout(bl);
 add(search, "Center");
 setBackground(Color.white);
 String buildID = getParameter("buildID");
 String bName = getParameter("bName");
 String bAddress = getParameter("bAddress");
 String bCity = getParameter("bCity");
 String bState = getParameter("bState");
 String bZip = getParameter("bZip");
 String bCName = getParameter("bCName");
 String bCLast = getParameter("bCLast");
 String bPhone = getParameter("bPhone");
 String bFax = getParameter("bFax");
 String bMobile = getParameter("bMobile");
Nametxt.setText(bName);
Loctxt.setText(bAddress);
Citytxt.setText(bCity);
Statetxt.setText(bState);
Ziptxt.setText(bZip);
CNametxt.setText(bCName);
CLasttxt.setText(bCLast);
Phonetxt.setText(bPhone);
Faxtxt.setText(bFax);
Celltxt.setText(bMobile);
Hope this will aid you in yours and anyone elses endevours.
James <[email protected]>

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CREATE LOGIN clouduser@gxw8x04nlb with PASSWORD = 'xoxoxoxo';
This appears to work (password supplied is a "strong" password), or at least it doesn't show any error response.
Then, connecting to the production database in Azure, I set up a user and set permissions as follow:
CREATE USER clouduser1 FROM LOGIN clouduser@gxw8x04nlb;
EXEC sp_addrolemember 'db_datareader', 'clouduser1'
EXEC sp_addrolemember 'db_datawriter', 'clouduser1'
When I attempt to connect to Azure using the new login, however, I get an error message (from SQL Mgmt Studio as well as from MS Access). I am using the SQL Server Native Client 10.0.
The message is:
Connection failed:
SQLState '28000'
SQL Server Error 18456
[Microsoft][SQL Server Native Client 10.0][SQL Server]Login failed for user 'clouduser'.
Connection failed:
SQLState: '01000'
SQL Server Error: 40608
[Microsoft][SQL Server Native Client 10.0][SQL Server]This session has been assigned a tracing ID of
'271851d5-8e94-497c-a332-d9d40682bb7a'. Provide this tracing ID to customer support when you need assistance.
Is there some missing step I need to do, to permit the login to see the database? I have looked for such in the various discussions about connection problems, but have not been able to find such a thing. Or extend more permissions to the new
user? Or specify a default user ID for a given login ? (as they do not have the same names, in the examples I have seen). I tried making the user ID the same as the login (w/o the server name), but that didn't seem to help, either.
I have done numerous web searches, and tried about every variation of login or user ID, password, etc. that I can think of, and all of them encounter the same error. It's got to be something very simple - clearly Azure supports more than one login
per database. But's that's all I have at the moment. That login connects just fine, but others won't, using the same PC, middleware, IP address, etc.
Any help would be much appreciated -
Thanks,
Doug

Olaf -
I noticed that, but all of the examples I have seen have Users named slightly differently from the Logins. I did try logging in with the Login name instead. No good. I tried making the Login and the User name the same (clouduser). Also
no good - same symptoms.
I think the problem is that the initial creation of the Login needs to be done WITHOUT the server name on the end.
Logged in to the master DB, I tried: Create LOGIN clouduser@gxw8x04nlb with PASSWORD = 'xoxoxoxo';
That didn't give me an error message, but I think it created a LOGIN of 'clouduser@gxw8x04nlb'. When
referenced from the outside world, I would need to specify 'clouduser@gxw8x04nlb@gxw8x04nlb'.
I tried deleting the logins, and then creating the login 'clouduser' in the Master DB. Then in
the application DB, I created User clouduser from LOGIN clouduser, and then assigned a role. That seems to work!
In my connection string, File DSN, etc. I still need to supply the login as 'clouduser@gxw8x04nlb'.
But when I am logged in to the server, and working in the Master DB or the application DB, I just refer to the Login as 'clouduser'.
Seems a little more complicated than it really should be, but at least I now have something that works.
Doug
Doug Hudson

Applet connecting to MS SQL Database (Remote DataSourse)

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