DSN Less Connections

Hi,
The majority of our ASP pages use a DSN Less connection. An example is
Set dbConnection = Server.CreateObject("ADODB.Connection")
dbConnection.open "Provider=MSDAORA;Data Source=tnsname;User ID=username;Password=password"
However I cannot get this to work with the instant client. I can even change the provider to "Oracle in instantclient10_2" and it errors out. DSN Connections like the one below work great
Set dbConnection = Server.CreateObject("ADODB.Connection")
dbConnection.open "DSN=dsn_name;UID=username;PWD=password"
But I do not really want to go around to all of web servers and recode them (nor make the programmers do it). Is there a way to use DSN Less connections with Instant Client? Am I using incorrect syntax, or is it just not possible currently?
Thanks in advance.
//Karl

I finally found an example that worked. The biggest clue to troubleshooting these connection is to reboot the server as IIS reset does not always clean up its cache.
Anyway the answer was this
Set dbConnection = Server.CreateObject("ADODB.Connection")
dbConnection.open "Driver={Oracle in instantclient10_2};Dbq=<db name>;UID=<username>;PWD=<password>;"
Thanks
//Karl

Similar Messages

DSN less connection from VB 5?

Hi all,
while I could get some information on creating DSN less connections into SQL Server with Visual Basic 5 on the Microsoft site, I could not get these tips to work with our Oracle server (what a surprise).
Maybe somebody here can tell me what I am doing wrong:
The Service name of our server in TNSNames is acesa1.cp.chbs
I have a Dataobject on my form in VB5 and set its connect property like:
Data1.Connect = "ODBC;DRIVER=Oracle73;UID=user;PWD=password;SERVER=acesa1.cp.chbs"
I set the recordsource property and do a Data1.Refresh.
I get error ODBC connection to Oracle73acesa1.cp.chbs failed.
Obviously there is something wrong.
Thanks to anybody who can point me to the correct syntax!
Peter

Solved my problem already. I was copying the code I use for DSN less connections in Visual Foxpro, but made a typo.
For all who are interested in the solution, here is the code I use to set the connect property:
Data1.Connect = "ODBC;DRIVER=Oracle73;UID=userid;PWD=password;DBQ=acesa1.cp.chbs;"
The important part is the DBQ parameter, SERVER or DATABASE are not used by the Oracle ODBC drivers.
Sorry for bothering you for nothing,
Peter

10g - DSN Less Connect

I'm looking for a way to use Microsoft odbc to create a dsn-less connection to an Oracle 10g database using vbscript. The script will run from client OS' on both XPsp2 (mdac2.8) and VistaBusiness-x32 (windows dac 6.0)
The script will call a stored procedure that strips the colons, spaces, dashes or periods in the stored mac_address item then query the server with a mac address and receive the workstation name and a few other items stored in the db. I will be sending the mac address with no colons, etc.
From what I've gleaned from other sources, the following should be close but I want to check before I go to my db guy for query help.
strConnection="Driver={Microsoft ODBC for Oracle}; Server=OracleServerName;uid=username;pwd=password;"
set conn=Server.CreateObject("ADODB.Connection")
conn.Open strConnection
Any code on executing the function and querying for the provided mac address would be helpful since I'm completely clueless... which comes first, the chicken or the egg..
Shoot, even if someone would post code on how I can check if the connection is actually made..
Thanks

...So I take it that I'll have to have the server
export to csv or a db format that will provide a
connection on a stock xp or vista box.I'm not sure exactly what you're saying here. Are you suggesting that you'd export the data on the server to a CSV file, copy that to a network share, and have your application create an ODBC connection to the CSV file?
Are you wedded to installing absolutely nothing else? The Oracle Instant Client, for example, just requires copying 3 or 4 DLLs to a directory & setting some environment variables in order to install a minimal Oracle client and ODBC driver (though it won't work with the Microsoft ODBC driver for Oracle). That's normally a pretty minimal burden for an application to include in its installation scripts.
Justin

Example code - dsn less connection to MySQL ?

Has anybody got any example code on how to connect to a MySQL
database without using DSN ?
eg. <cfset myconnectionstring="....
My hosting company say they prefer me NOT to use a DSN. Do
you think they're correct in saying this ?

You can create a dsn less connection for access on a PRE-MX
(ie ColdFusion 5.0) environment. CFMX does not currently allow for
DNS-Less connections, due to a "restriction" with JDBC.
So it seems that your hosting company are nutters! :) It is
normal for your host to create the dsn themselves, however, it will
be limited by the number of dbs you have. I imagie you can have up
to 2 mysql dsns without charge, mssql will cost per db/dsn and
access should be free for one dsn connection.
HTHs

Establishing DSN less connection to .csv file

Hello to all,
I need to establish dsn less connection to .csv file, can anybody suggest me the solution.
Please treat this matter as urgency,
Thanks in advance.
Y_mail

Hi Mohammad,
it would be easier for us all if you would continue one of your previous topics about the same problem:
http://forum.java.sun.com/thread.jsp?forum=48&thread=194701
http://forum.java.sun.com/thread.jsp?forum=48&thread=193727
http://forum.java.sun.com/thread.jsp?forum=48&thread=194147
http://forum.java.sun.com/thread.jsp?forum=48&thread=190876
Also changing your userprofile doesn't help much.
If you watch the replies to your topics, you see that in this one
http://forum.java.sun.com/thread.jsp?forum=48&thread=193727
we're about to work out a solution for reading a csv file with BufferedReader. The JDBC connection mentioned there is only for putting the retrieved values into Access afterwards; for your task this part can be ignored.
So I think you should find your solution there.
If not, please ask again - but please (!) don't start a new topic or user again for that same problem.

Which version of ODBC Driver supports DSN-less Connection in JAVA

hai,
Which version of ODBC Driver supports DSN-less Connection in JAVA.
-raja

hai,
Pleae help in this regard.
I am using a DSN-less connection to conect to
Access using JDBC. But it is not working. It is throwing
Data Source Name too long exception.
I think the problem is with ODBC version.
Let me clear about this.
Thanks in Advance.
-raja

DSN-less Connection in a Servlet

hai,
I am using the following DSN-less Connection in a servlet. It is working fine in as
a stand alone application. But it is not working in a a servlet.It is throwing DSN name too
long exception.
dsn="DRIVER={Microsoft Access Driver (*.mdb)};DBQ=d:\\db1.mdb";
          try
          System.out.println("DSN-less connection.......................");
          Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection("jdbc:odbc:"+dsn);
          if(con!=null)
               System.out.println("Connected");
          else
               System.out.println("Not Connected");
          st=con.createStatement();
          System.out.println("connected.........................");
          catch(Exception e)
          {   e.printStackTrace();
Please give me the details why it is not working.
I am using jdk1.3 and jsdk2.0.
bye
-raja

Dear jschell,
I am very thankful to u for being my problem solved.
As u said the problem is with the syntax and with environment.
I have changed the syntax in connection string by inserting a
space in between
DRIVER={Microsoft Access Driver and (*.mdb)};DBQ=c:\\db1.mdb";
and running the servlet in servletrunner it is working.
Now to run the same servlet using a webserver I need to configure it properly.
I am usning Java Web Server. Earlier I installed JDK1.2 on my system and
now I changed it to JDK1.3. There r some problems while uninstalling JDK1.2.
May be the JWS is using the jdk1.2 runtime environment.
Pleaselet me clear this.
Thanks a lot for all the help u have done so far.....
-raja

How to create a dsn less connection using a jsp

hi,
presently i have created a web site using jsp..i used a dsn connection to access the database.i used the basic jdbc:odbc type one driver..the issue is that when i tried to webhost my website they told me that i have to use a dsn less connection ....code anyone refer me the code as to how i could a dsn less connection jsp...i am using a access database..

Well Friend,
This is not the right form to post this query i would advice u to post this query in the JDBC thread
If U are not satisfied with the resolution provided below
Howevr as per my experience
If U wanna use DSN less Connection U may go ahead and use TYPE II/III/IV drivers which would be Application(database) specific in general.
u wud have to include the driver specific .jar files (to load drivers) in your classpath for few specific type of drivers like thin/OCI/.......
And it wud be different for different Databases U can easily get information and downloadables about those drivers from db vendors web portals.
Just for U reference check the links below
http://www.oracle.com/technology/tech/java/sqlj_jdbc/htdocs/jdbc_faq.htm
http://forums.oracle.com/forums/thread.jspa;jsessionid=8d92200830de37db8191784349ff8c14cef5a6d94e36.e34QbhuKaxmMai0MaNeMb3aTbxz0?messageID=901133&#56112;&#56333;
http://www.kitebird.com/articles/jdbc.html
http://www.developer.com/java/data/article.php/3417381
http://www.akadia.com/services/sqlsrv_jdbc.html
http://www.thescripts.com/forum/thread182937.html
Else where U can make use of Hibernate/ EJB/.....
which would include support for Dbconnection internally.

How to create a DSN Less Connection using MySQL

Hi All
How to create a DSN Less Connection using MySQL?
http://www.caucho.com/projects/jdbc-mysql/index.xtp and downloaded Caucho driver and installed the jar ---- caucho-jdbc-mysql-0.2.7.jar in my classpath..
this is how i embedded the code
try
driver = (Driver) Class.forName("com.caucho-jdbc-mysql-0.2.7.Driver").newInstance();
catch (Exception e)
lastErr = "Cannot load the driver, reason:"+e.toString();
nothing seems to work with code..
Unable to proceed..Any piece of code would be of great help..
Thanks and regds
Gautam

According to the installation instructions for that driver:
The driver is com.caucho.jdbc.mysql.Driver
The url is jdbc:mysql-caucho://hostname:port/database
You used something else for the driver name. So it doesn't work. By the way, I found those instructions here: http://www.caucho.com/projects/jdbc-mysql/

DSN to DSN-Less Connection

Hi Guys,
Some advice please, perhaps some suggestions on the best way
forward please.
I have inherited a Web site runnning on MS Access db's
utilising DSN connections.
I do not use DSN connections rather DSN-less connection
strings.
My question is, is there an easy way / operation, to convert
all the connection strings to a DNS-less vesion. My host does not
allow DSN connections where they set the alias on the server, hence
my requirement.
Any suggestions please. I could really do with an easy answer
as I do not really wish to have to re-script the site.
Thanks as always.
Jules

Sorry meant to post the recordset script too. Here is is
<%@LANGUAGE="JAVASCRIPT"%>

<%
var cityliving = Server.CreateObject("ADODB.Recordset");
cityliving.ActiveConnection = MM_bealdevelopments_STRING;
cityliving.Source = "SELECT * FROM developments WHERE
lifestylesection LIKE '%1%' AND live = '2'";
cityliving.CursorType = 0;
cityliving.CursorLocation = 3;
cityliving.LockType = 1;
cityliving.Open();
var cityliving_numRows = 0;
%>
<%
var countryliving = Server.CreateObject("ADODB.Recordset");
countryliving.ActiveConnection = MM_bealdevelopments_STRING;
countryliving.Source = "SELECT * FROM developments WHERE
lifestylesection LIKE '%2%' AND live = '2'";
countryliving.CursorType = 0;
countryliving.CursorLocation = 2;
countryliving.LockType = 1;
countryliving.Open();
var countryliving_numRows = 0;
%>
<%
var familyliving = Server.CreateObject("ADODB.Recordset");
familyliving.ActiveConnection = MM_bealdevelopments_STRING;
familyliving.Source = "SELECT * FROM developments WHERE
lifestylesection LIKE '%3%' AND live = '2'";
familyliving.CursorType = 0;
familyliving.CursorLocation = 2;
familyliving.LockType = 1;
familyliving.Open();
var familyliving_numRows = 0;
%>
<%
var watersideliving = Server.CreateObject("ADODB.Recordset");
watersideliving.ActiveConnection =
MM_bealdevelopments_STRING;
watersideliving.Source = "SELECT * FROM developments WHERE
lifestylesection LIKE '%4%' AND live = '2'";
watersideliving.CursorType = 0;
watersideliving.CursorLocation = 2;
watersideliving.LockType = 1;
watersideliving.Open();
var watersideliving_numRows = 0;
%>
<%
var Repeat1__numRows = -1;
var Repeat1__index = 0;
cityliving_numRows += Repeat1__numRows;
%>
<%
var Repeat2__numRows = -1;
var Repeat2__index = 0;
countryliving_numRows += Repeat2__numRows;
%>
<%
var Repeat3__numRows = -1;
var Repeat3__index = 0;
familyliving_numRows += Repeat3__numRows;
%>
<%
var Repeat4__numRows = -1;
var Repeat4__index = 0;
watersideliving_numRows += Repeat4__numRows;
%>

Help needed for MySQL 5 database DSN less connection with Oracle reports

Hi,
I am using Oracle Develper Suite and java (J2EE) for my application. I am using MySql 5 as database tool. I want to use Oracle reports of Oracle Develper suite. I have created some reports by first creating system DSN for MySql database and then connect Oracle reports to that DSN by "jdbc:odbc" connection string provided in Oracle Report developer wizard. This is working fine.
I want to generate reports without creating system DSN (DSN less) so that i can use my application on any computer without creating DSN for Oracle Reports. I am deploying my application on OC4j as "EAR" file.
Help in this regard will be highly appreciated.
Regards.

Using an 8i client, you will need to configure the tnsnames.ora file with appropriate connection information if you are using local naming. If you are using host naming or something like an Oracle Names server to resolve TNS aliases, you can skip the tnsnames.ora configuration. A default installation of the Oracle client, though, will probably be using local naming.
If the tnsnames.ora file is configured, or you have configured an alternate way of resolving TNS aliases, you should be able to use the connection string
DRIVER={Oracle ODBC Driver};DBQ=<<TNS alias>>;UID=system;PWD=managerIf you wanted to move to the 10g client (the 10g Instant Client could be useful here), there are some streamlined naming methods that could be used instead of configuring the tnsnames.ora file.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

DSN Less connection with Text Driver

Hi to all,
I want to connect Text file without DSN connection.
Everyone's solution and suggestions in this regards is higly appreciated.
Thanks in advance.
khiz_eng

It seems nobody is interested in my problem.Could be.
Or they don't know a solution.
If it is doable then it should be possible to figure it out yourself. You search the forum for DSN-less solutions. And you use the File DSN trick (which you will find when searching DSN-less) to determine the parameters.
And finally it might not be possible since it depends on whether the ODBC driver supports that. Not all do.

Dsn-less connections on hosting

Hi,
In the past Ive had lost of success using Dreamweaver 8 to
create dsn-less conections on a remote testing server. It has
always been a Windows server.
Recently i have been looking at creating a simple blog page
for a friend using an Access database on his web hosting on a Linux
server using ASP VBScript.
It is virtual hosting so all the pages have to be FTPd to a
directory called "web" Im sure I have setup my site definitions
correctly locally and on the testing server. However after editing
my custom connection string and clicking the test key I cannot
establish a connection.
The connection string I am using is similar to the following
"Driver={Microsoft Access Driver (*.mdb)};DBQ=" &
Server.Mappath("\DBPath\db.mdb")
I commonly get error message 500 "Unknown server Error" after
pressing the test button.
Im pretty sure the connection string is correct and its
something to do with the fact its on virtual hosting (but i did
think using Server.Mappath would handle that) or its because its a
Linux server.
Any points in the right direction would be most appreciated!
"Driver={Microsoft Access Driver (*.mdb)};DBQ=" &
Server.Mappath("\DBPath\db.mdb")

On 20 Apr 2007 in macromedia.dreamweaver.appdev, Piers wrote:
> I wouldn't use Server.MapPath for a DB conn. The server
will have to
> calculate the path for the db every time a connection is
made. I
> (people please correct me on this) feel it would be
better to spend
> a bit of time and find the path to the DB at the start,
and hard
> code it.
That's the way I do it.
> They're not gonna move your db without telling you!
Wanna bet?
More specifically - the hosting provider won't change /your/
file
structure. But they may change theirs, which could result in
a file path
like D:\clients\username1234\database\mydb.mdb changing to
r:\newserver
\newpath\newusername\databases\mydb.mdb Hopefully they would
notify you
in advance, though.
Joe Makowiec
http://makowiec.net/
Email:
http://makowiec.net/contact.php

DSN-less connection,BEA weblogic

Hi , I have a .war file which I deploy into a BEA Weblogic server.
Now, the .war file contains a ms-access file which is required in a JDBC-ODBC module in the .war file. What I find is that BEA doesn't extract the ms-access file to any temporary folder, and hence I am finding it hard to read the file in my JDBC-ODBC module. What I want is to know the path which I mention in the DSN-less conection if the ms-access file resides inside the .war file?
con = DriverManager.getConnection("jdbc:odbc:;DRIVER=Microsoft Access Driver (*.mdb);DBQ=c:/databases/StockPrices.mdb");
Sudhakar

That's right, WebLogic does not extract WAR file on disk (extracts it just in memory) and why it should do that. WAR files are very convenient and compact format for web application deployment. But if you do want to have directory structure on your disk you can manually extract WAR file using jar tool into applications directory and this web application should work as well as in WAR form (that's so called "exploded form" of web application). WAR file is standard JAR file with some special directory organization according to web application deployment file structure specification having WAR extension!
Furthermore, try to use some System properties like System.getProperty("user.dir") to get path for your Access MDB file: http://java.sun.com/docs/books/tutorial/essential/system/properties.html
Finally, my suggestion is to use another type of database having real JDBC driver like freeware MySQL or PostgreSQL.

DSN less connection problems

I hope someone can provide an answer to this problem. I am receiving the
following SQL Exception "Data source name too long".
I am using JDK 1.1.8, Windows 98 OS, btw
I also downloaded Microsoft MDAC 2.6, available at
http://www.microsoft.com/data/download_260rtm.htm
thinking that the ODBC driver just may be out of date.
The source code follows:
import java.sql.*;
import java.lang.*;
import java.util.Enumeration;
import java.util.Properties;
public class ConnecttoExcel {
public ConnecttoExcel() {
Connect ();
public void Connect() {
try {
Connection db= null;
Statement st = null;
String fullConnectionString = "jdbc:odbc:Driver={Microsoft Access
Driver(*.mdb)};DBQ=C:\\requisition.mdb";
try {
Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver"); }
catch (ClassNotFoundException r) {r.printStackTrace();}
db = DriverManager.getConnection (fullConnectionString);
st = db.createStatement ();
DatabaseMetaData dma = db.getMetaData ();
System.out.println("\nConnected to " + dma.getURL());
System.out.println("Driver " + dma.getDriverName());
System.out.println("Version " + dma.getDriverVersion());
System.out.println("");
catch (SQLException e ) {e.printStackTrace();}
public static void main (String[] args) {
ConnecttoExcel conn = new ConnecttoExcel();
java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name too
long
at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:3661)
at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:3814)
at sun.jdbc.odbc.JdbcOdbc.SQLDriverConnect(JdbcOdbc.java:1029)
at
sun.jdbc.odbc.JdbcOdbcConnection.initialize(JdbcOdbcConnection.java:145)
at sun.jdbc.odbc.JdbcOdbcDriver.connect(JdbcOdbcDriver.java:165)
at java.sql.DriverManager.getConnection(DriverManager.java:83)
at java.sql.DriverManager.getConnection(DriverManager.java:141)
at ConnecttoExcel.Connect(ConnecttoExcel.java:22)
at ConnecttoExcel.<init>(ConnecttoExcel.java:8)
at ConnecttoExcel.main(ConnecttoExcel.java:37)

1. change your code
String fullConnectionString = "jdbc:odbc:Driver={Microsoft Access
Driver(*.mdb)};DBQ=C:\\requisition.mdb";
as following:
String fullConnectionString = "jdbc:odbc:date_source_name";
2. create a DSN by using ODBC Data sources(32) in control panel.
DBClick the icon and from DSN tab click the Add button, Select MS Access driver and click finish button,
Give your DSN a name "date_source_name" and click select button to locaate youe database "C:\\requisition.mdb"
OK.

DSN Less Connections

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