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Dean_Reedy

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JDBC MS Acess connect DSN-less free

-Just getting started in java, and I want to connect my application to a MS access database.

-I would like to be able to connect without using a DSN, thus DSN-less.
- And from what I read all of the drivers cost money, but I would like something free!
Any ideas?

Code & drivers is what I am looking for.

Thanks,
Avatar of steeks
steeks

you can use the RmiJdbc driver.  It is available under the LGPL Licence, which allows you to bundle it with commercial products.  You can find it at
http://www.objectweb.org/RmiJdbc/RmiJdbcHomePage.htm

You can connect using either a url, hostname, or ip address
This driver is open source, and they provide some useful info for getting it up and running
Avatar of Mick Barry
It still needs a DSN.
How can I use the JDBC API to access a desktop database like Microsoft Access over the network?

Most desktop databases currently require a JDBC solution that uses ODBC underneath.
This is because the vendors of these database products haven't implemented all-Java JDBC drivers.


The best approach is to use a commercial JDBC driver that supports ODBC and the database you
want to use. See the JDBC drivers page for a list of available JDBC drivers.

The JDBC-ODBC bridge from Sun's Java Software does not provide network access to desktop databases
by itself. The JDBC-ODBC bridge loads ODBC as a local DLL, and typical ODBC drivers for desktop databases
like Access aren't networked. The JDBC-ODBC bridge can be used together with the RMI-JDBC bridge ,
however, to access a desktop database like Access over the net. This RMI-JDBC-ODBC solution is free.

http://dyade.inrialpes.fr/mediation/download/ 

also look
http://java.sun.com/products/jdk/1.1/docs/guide/jdbc/index.html 
http://java.sun.com/docs/books/jdbc/intro.html 

Java how-to DB section!
http://tactika.com/realhome/javaht/java-d1.html 
http://codeguru.developer.com/java/Miscellaneous/Database/index.shtml 

courtesy: vladi21
sorry. Ignore my comments. It is the same old link (object web)  :)
Avatar of Dean_Reedy

ASKER

steeks,

I do thank you for the answer, however I am looking for a DSN-less connection option.
The MS Access database will be on my local machine, and in the future I am looking at moving it to a drive mapped to a local server.
Dean

Comments:

using access, what about Jet Database Engine (ie, MS access db, with the ODBC bridge).

And why not use a DSN? its just a simple matter of a constant in your code, and a registry key on either a local box or a server?

DB's like Oracle allow specification of a port, server name eg db1.muckingfuddled.com:1521, this is accomplished via a level 4 jdbc driver implmeneted using Sockets.

GR.
GR,

True, the DSN route is a possibility.  However I want to distribute this simple application to other people, and that would require them to setup a DSN as well, which I am hopping to avoid.  Now is there a way to programmable to setup up the DSN?

Dean
The DSN's are just registry entries, they can be added from a batch file and a .reg file.

If you add a DSN to your system, then export the registry key: HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBC.INI\{DSN_NAME_YOU_SPECIFY}

for example one on my machine, is one called pimtest (for access), looks like:

[HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBC.INI\pimtest]
"Driver"="C:\\WINNT\\System32\\odbcjt32.dll"
"DBQ"="X:\\FORGE\\pimtest.mdb"
"DriverId"=dword:00000019
"FIL"="MS Access;"
"PWD"="pass"
"SafeTransactions"=dword:00000000
"UID"="user"

[HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBC.INI\pimtest\Engines]

[HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBC.INI\pimtest\Engines\Jet]
"ImplicitCommitSync"=""
"MaxBufferSize"=dword:00000800
"PageTimeout"=dword:00000005
"Threads"=dword:00000003
"UserCommitSync"="Yes"

GR.
i cant remember exactly, but there is a switch for regedit so in a batch file calling:

regedit /[SomeSwitchOrOther] dsn.reg

will import the require file. (or you could just double click it from explorer, but wheres the fun in that... ;-)
Without a switch it asks if you want to proceed, there is away roundit,m i jsut cant think of hte switch...

GR.
Are the database's you are trying to access installed on the client?
You only need to setup a DSN on the server hosting the database, not every client.
objects,

The program is going to be first on individual clients, however in the future I would like to set it up on the client machines where they are mapping a drive to an NT Server.  I prefer DSN-less, or a way programmicly to setup DSNs on the client machines would be answer also.

Dean
registry programaticlly is either using a "Java" library written by M$ for win32 interaction (i know things like dialogs and directx have been written by M$ so assume there are classes for the registry too), or a native dll/exe with the registry data in, or a .reg file.
> up on the client machines where they are mapping a drive to an NT Server

Then you only need a DSN on the NT server.
Not the client.
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Avatar of guidway
guidway
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Here is what I finally got to work.  Notice I had to add "newInstance()".

Thanks, guid way.


Class.forName("sun.jdbc.odbc.JdbcOdbcDriver").newInstance();
Connection conn = DriverManager.getConnection("jdbc:odbc:;DRIVER=Microsoft Access Driver (*.mdb);DBQ=Test.mdb;PWD=mypass","login","password");
Statement command = conn.createStatement();
ResultSet rs = command.executeQuery("select count(*) as tot from Member");  
 
Here is what I finally got to work.  Notice I had to add "newInstance()".

Thanks, guid way.


Class.forName("sun.jdbc.odbc.JdbcOdbcDriver").newInstance();
Connection conn = DriverManager.getConnection("jdbc:odbc:;DRIVER=Microsoft Access Driver (*.mdb);DBQ=Test.mdb;PWD=mypass","login","password");
Statement command = conn.createStatement();
ResultSet rs = command.executeQuery("select count(*) as tot from Member");  
I thought you knew how to connect, but were confused about DSN's ????
Good to hear your happy :)