Accessing Oracle Database from PocektPC / Palm

Hi
We need to develope a mobile application where client can be Palm or PocketPC device (preferably PocketPC)
and the Server is Oracle 9 on Sun Solaris.
Some data will be logged into PDA device and stored in the local database. Thereafter it needs to connect to Oracle and INSERT into it.
We do not want to use any third party sw as far as possible. The client does not have App Server (so web services is not possible)
If we have to use Palm device what are the solutions?
If we have to use PocketPC device what are the solutions?
thanks and regards
Haresh Gujarathi
eMantra Technologies.

Haresh,
With a max of 10 clients and 3-4 simultaneous syncs, I think your customer can run Lite in standalone mode without the App Server. Before I answer your questions, I'd like to give a brief description of the data model for Lite, which might help.
When you enter data into your client (PPC, Palm or laptop), the data is put into an Oracle Lite Database, located on the client. When you synchronize with the Oracle Lite Mobile Server, the Lite DB on the client is synchronized with the Lite DB on the Mobile Server. This synchronization is done through http and we provide the infrastructure for this process.
Once the data is on the Mobile Server, the data on the Oracle Lite DB can be inserted into the Oracle 9i DB through JDBC.
When you ask about the Wi-fi connection, what exactly are you speaking of? For example, do you mean an 802.11b connection between the Lite client and the Mobile Server, and then an additional 802.11b connection between the Mobile Server and the 9i DB? In both cases, this can be done because it's simply a different mode for the transport of data.
1. If Lite is not in the picture at all, then you can simply use one of Oracle's connectors (e.g. JDBC) to access the 9i Database.
2. Yes, .NET is supported in Oracle Lite, releases 5.0.2.8 and higher.
3. I'll have to do some further research for the answer to this question to see if it's possible to write an app that can connect to the Lite DB on Palm using Mobile VB.
4. #2 can be done and it might be possible to do #3.
5. There are some tutorials on OTN. Here is the link:
http://otn.oracle.com/products/lite/tutorials/index.html
Please let me know if you have additional questions.
Cheers,
Junius

Similar Messages

Accessing Oracle Database from PcoektPC / Palm

Hi
We need to develope a mobile application where client can be Palm or PocketPC device (preferably PocketPC)
and the Server is Oracle 9 on Sun Solaris.
SOme data will be logged into PDA device and stored in the local database. Thereafter it needs to connect to Oracle and INSERT into it.
We do not want to use any third party sw as far as possible. The client does not have App Server (so web services is not possible)
If we have to use Palm device what are the solutions?
If we have to use PocketPC device what are the solutions?
thanks and regards
Haresh Gujarathi
eMantra Technologies.

Haresh,
With a max of 10 clients and 3-4 simultaneous syncs, I think your customer can run Lite in standalone mode without the App Server. Before I answer your questions, I'd like to give a brief description of the data model for Lite, which might help.
When you enter data into your client (PPC, Palm or laptop), the data is put into an Oracle Lite Database, located on the client. When you synchronize with the Oracle Lite Mobile Server, the Lite DB on the client is synchronized with the Lite DB on the Mobile Server. This synchronization is done through http and we provide the infrastructure for this process.
Once the data is on the Mobile Server, the data on the Oracle Lite DB can be inserted into the Oracle 9i DB through JDBC.
When you ask about the Wi-fi connection, what exactly are you speaking of? For example, do you mean an 802.11b connection between the Lite client and the Mobile Server, and then an additional 802.11b connection between the Mobile Server and the 9i DB? In both cases, this can be done because it's simply a different mode for the transport of data.
1. If Lite is not in the picture at all, then you can simply use one of Oracle's connectors (e.g. JDBC) to access the 9i Database.
2. Yes, .NET is supported in Oracle Lite, releases 5.0.2.8 and higher.
3. I'll have to do some further research for the answer to this question to see if it's possible to write an app that can connect to the Lite DB on Palm using Mobile VB.
4. #2 can be done and it might be possible to do #3.
5. There are some tutorials on OTN. Here is the link:
http://otn.oracle.com/products/lite/tutorials/index.html
Please let me know if you have additional questions.
Cheers,
Junius

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It is possible access to an'ORACLE database from Microsoft Access?

Yes, that's possible.
You can find several threads for this on the forum,e.g.
Oracle & MS Access

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I am a bit confused as to what way to go. I am building a desktop application that needs to access an oracle database. I have done this in the past using code similar to the following:
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The problem I would like to resolve is that I have this code all over the place in my application. I would like to have it in one objects method that i can call from other classes. I can't easily see how to do this, or maybe at this point I'm just too confused.
I want to be able to change this connection info from a properties file which I have already done, not sure if this bit of information would change the answer to my question. I was also looking at the DataSource api, this looks like it is close to what I should use, what are your thoughts?
I would also like to if JNDI is only for web applications or would be appropriate for a desktop app.
Thank you for your help, I realize this is all over the place but I really need these topics cleared up!

I have tried exactly that and am getting an error which let me to believe it couldn't be done that way. Here is my code and error message:
public class readPropsFile {
    String getURL() throws IOException {
        // default values for properties file
        String Family = "Family:jdbc" + ":oracle:" + "thin:@";
        String Server = "Server:111.111.111.111";
        String Port = "Port:1521";
        String Host = "Host:oradb";
        String Username = "Username:username";
        String Password = "Password:password";
        try {
            new BufferedReader(new FileReader("C:\\data\\Properties.txt"));
        } catch (FileNotFoundException filenotfound) {
            System.out.println("Error: " + filenotfound.getMessage());
            // displays to console if file DOES NOT exist
            System.out.println("The file DOES NOT exist, now creating...");
            FileWriter fileObject = null;
            fileObject = new FileWriter("c:\\data\\Properties.txt");
            BufferedWriter out = new BufferedWriter(fileObject);
            // writes to output as simple text.
            out.write(Family);
            out.newLine();
            out.write(Server);
            out.newLine();
            out.write(Port);
            out.newLine();
            out.write(Host);
            out.newLine();
            out.write(Username);
            out.newLine();
            out.write(Password);
            out.newLine();
            out.close();
        // displays to console if file exists
        System.out.println("The file exists, or was created sucessfully");
//      creates the properties object, assigns text file.
        Properties props = new Properties();
        FileInputStream in = new FileInputStream("c:\\data\\Properties.txt");
        props.load(in);
        Family = props.getProperty("Family");
        Server = props.getProperty("Server");
        Port = props.getProperty("Port");
        Host = props.getProperty("Host");
        Username = props.getProperty("Username");
        Password = props.getProperty("Password");
//      prints properties to a file for troubleshooting
        PrintStream s = new PrintStream("c:\\data\\list.txt");
        props.list(s);
        in.close();
        String URL = "\"" + Family + Server + ":" + Port + ":" + Host + "\"" +
                "," + "\"" + Username + "\"" + "," + "\"" + Password + "\"";
        System.out.println("This is the URL:" + URL);
        return URL;
}And here is where I try to call the method:
public class connWithProps1 {
    public static void main(String[] args) {
        readPropsFile callProps = new readPropsFile();
        try {
            callProps.getURL();
            String url = callProps.getURL(); // not needed
            System.out.println("The URL (in connWithProps1) is: " + csoProps.getURL());
            DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
            Connection conn = DriverManager.getConnection(url);
            // Create a Statement
            Statement stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("select .... WHERE ....'");
            while (rs.next()) {
                System.out.println(rs.getString(1));
            } // end of rs while
            conn.close();
        } catch (SQLException sqle) {
            Logger.getLogger(connWithProps1.class.getName()).log(Level.SEVERE, null, sqle);
        } catch (IOException ioe) {
            Logger.getLogger(connWithProps1.class.getName()).log(Level.SEVERE, null, ioe);
}The error I get is:
SEVERE: null
java.sql.SQLException: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
The Connection descriptor used by the client was:
111.111.111.111:1521:oradb","username","password"
        at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:70)
        at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:112)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:173)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:460)
        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:411)
        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:490)
        at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:202)
        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33)
        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:474)
{code}
Although the URL prints out correctly and when I tried plugging in the URL manually, it works just fine. One other thing I noticed was the line "The file exists, or was created sucessfully" is output 3 times.
I will go back and change my code to properly close the resultset, thanks for catching that. Id rather use what I have instead of JNDI unless it's nesessary.
Edited by: shadow_coder on Jun 19, 2009 2:16 PM

Trying to access 10gr2 database from sqlplus utility but it connects to 11g

Hi All,
I am facing below issue while access 10gr2 database from sqlplus.
I am having two oracle homes on one server one belongs to 11gr2 and another belongs to 10gr2.
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I have set all the env variables such as oracle_home ,oracle_sid and path with respect to Oracle 10gr2.
Can you please let me kno what I need to do to connect to 10gr2 database and not 11gr2 database through sql plus.
Let me know if I need to give any more details on this.
Best Regards,
Dipti S

Hi Rocky,
I got the resolution.
I made a mistake by creating an oracle instance/service(e.g. fsdmo) when Oracle_home was pointing to 11gR2 Directory.so that service was refering to 11gr2 oracle home.
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thank you so much for responding.
hope I am clear with my reply.
Best Regards,
Dipti S

How to access Oracle database using UNIX?

Hi,
Does anyone know how to access Oracle database Oracle 8i that is hosted on unix server via unix command line?
Thanks,
Willy

Well, Oracle probably has a command line tool. I think it's called sqlplus or somesuch. Check you Oracle docs.
Of course, given that this is a Java forum, it's remotely possible that you're actually asking about accessing the database from a Java program.
http://java.sun.com/developer/onlineTraining/Database/JDBC20Intro/

Connect on an oracle database from another computer

hi all,
i installed oracle database 10g express as well as sql developer on one of my laptop. Everything is ok as of the moment.
Now, i want to access that oracle database from my another laptop. Is this possible? let me know what should i do in order to achieve this.
thanks.

user13169035 wrote:
thanks for the help. basically here is the setup.
i have 2 laptops. the first one has oracle 10g database express install and sql developer. i can query my database from here using sql developer.
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i already tried the link from http://www.oracle.com/technology/software/products/database/xe/files/install.102/b25144/toc.htm but didnt work (or maybe i missed something important).
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How to connect to oracle database from visual basic 2010 express edition

I have installed visual basic 2010 express edition on windows xp. But visual basic 2010 express edition supports Microsoft sql server database file,Microsoft sql server compact 3.5, Microsoft access database file. I want to connect to oracle database from visual basic 2010 express edition. So what drivers are required and how to do connectivity?

Hello,
I wasn't clear on what you were using to make the connection. I had a look in Visual Studio 2010 (don't have express to test sorry).
I think you mean the Data Sources available under the menu Data-> Datasources. this seems to match the description you give when I
look at the list of datasource options.
In here you can make ODBC connections via the Microsoft .net Data Provider .
If you select ODBC as a datasource you can see listed the DSN's you created - for example I see 2 which use the Oracle ODBC driver.
This assumes you installed an Oracle Client + the oracle version of the ODBC driver (comes with the oracle client).
Once you created a server connection then you should see it in the server explorer.
You can also download the Oracle Developer Tools for Visual Studio which is an add on for VS.
** I suspect this is only for VS 2010 and I didn't see that Express was supported.
http://www.oracle.com/technetwork/developer-tools/visual-studio/overview/index-097110.html
Let me know if that helps.
John

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I'm an Oracle Account Manager and I have a customer with a XGEN application accessing Informix Database. They want to keep this application and move from Informix to Oracle, and this application must access Oracle. Does any one have an experience like this?

Hi Bharathwaj,
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i wanted to ask one more thing...
In our webdynpro application (deployed on WAS) we are required to fetch and update data in oracle database. The restriction here is we are required to use DSN (provided by Primavera Inc..for connection). We are using connection pool, where we have configured data source with DSN(system DSN) with appropriate parameters.
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Because our server has 1 GB RAM + 4 GB VM there fore total 5GB available memory. Previous performance of server was very slow due to wrong VM setting...
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If there are any settings to be done on server also..
fine..we have complete access of it...
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Create a new oracle database from OCI or OCCI client

Hi,
How can we create a new oracle database from OCI or OCCI client?
i am using the oracle 11gR2
Thanks in Advance,
Sreekanth Polaka

Though I have not tried creating a database, try if its doable.
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How to connect to Oracle database from webdynprojava application

Hi
How to connect to Oracle database from webdynprojava application. where can we provide the code to connect to database.?
Thank You.

Hi,
You need to create Java Bean model. The bean is a typical java bean with default constructor, getter and setter. You can have additional methods for query etc. The attributes in the class will be your model node and attributes.
However you need to configure the connection and create JNDI using visual administrator before writing the code.
You can also consider writing Session EJB with oracle and using them in WD.
http://help.sap.com/saphelp_nwce10/helpdata/en/45/dcaa4f05535591e10000000a1553f7/frameset.htm
Srini

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I'm using getDocumentBase()
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I keep getting :
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...etc.
This applet crap is really starting to piss me off. I can see why they came out with JSP.
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If you all don't have a clue, I'm freakin switching to PHP--I'm tired of this crap-I was thinking Java was a damn good language until I hit applets.

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Hi all,
Good day,
I am looknig for perfect steps on moving an oracle database from one server to another server.
Below are the details,
From:
SunOS sacsun134 5.10 Generic_142909-17 sun4u sparc SUNW,SPARC-Enterprise [Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit]
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Many Thanks...

To clone your ORACLE_HOME binaries, see 300062.1 (How To Clone An Existing RDBMS Installation Using OUI).
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HTH
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i want to query oracle database from sql server can anyone tell steps 2 followed
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The operation could not be performed because the OLE DB provider 'MSDAORA' was unable to begin a distributed transaction.
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First of all - you are in the wrong forum.
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cu
Andreas

Accessing Oracle Database from PocektPC / Palm

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