How do I start on Oracle Generic Connectivity?

Hi, I am new to Oracle and can i know where i can get info on setting up Oracle Generic Connectivity to connect Oracle with non-Oracle databases?

The documentation is a good place to start. The relevant
link:
http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96544/gencon.htm#1656
For supplementary material do a google search on
oracle generic heterogeneous services.
Hope this helps.
Kailash.

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Oracle Generic Connectivity in Oracle Application Ser ver 10g.

Hi Tak and All!
With the help of your great guidence, I have connect the Generic Connectivty for MS Access and MS Excel successfully in client server environment.
The topology was..
Host A = Custom installation of Oracle9i database + MS ACCESS
Host B = Oracle 9i Database (Complete)
But...
tell me How the Oracle Generic Connectivity will connect in ORACLE APPLICATION SERVER. What will be the concept and topology? Because the client only have the URL which is used for getting application on browser.
I will be extremely thankful.
All these forums always help me.
Thanks
Rana Adnan

It depends. Oracle Reports can connect to Oracle and non-Oracle databases directly, without using Generic Connectivity.
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Given the three machines A, B, and C
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Can We Create dbf file directly means without using CSV file?
Can we use Heterogeneous Services & Oracle Generic Connectivity for creating dbase DBF file or Writing in dbase DBF file?
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HSODBC/DG4ODBC is generic connectivity and you find the generic setup in:
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The rest is absolute similar to the note.
If you have already a running HSODBC/DG4ODBC the quickest test is to just define a new system dsn for the DBF file, then change in the init>hsodbc/dg4odbc>.ora file the HS_FDS_CONNECT_INFO parameter pointing to the newly created system DSN. Last step is within the Oracle db to define a database link.

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Correct me I'm wrong and please do noted me. In my country this course very expensive and I'm looking to learn on my own.
Edited by: user12301712 on 03-dic-2009 9:46

Hi
During installation wizard asked you about password for SYS and SYSTEM user, you had to set it. If you forgot you can loggin to ORACLE via SQL plus without password:
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after connect you can set new password for any user, for example (SYSTEM user):
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After this you can login to APEX (Internet enviroment)
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Heterogeneous Services & Oracle Generic Connectivity for dbase DBF file

Dear All,
Can we use Heterogeneous Services & Oracle Generic Connectivity for creating dbase DBF file or Writing in dbase DBF file?
I have used it for Excel and Access for connectivity with Oracle 9i
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I wouldn't think so these days ... however, you could try posting this in the heterogeneous services - which is somewhere on OTN.
If it we me, I'd convert the DBF into something easier to use with Oracle : like XML or CSV

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Using Oracle Generic Connectivity to connect from Oracle to Microsoft Acces

I am trying to connect from Oracle to Access using ODBC. I followed the steps described in oracle documentation but was not sucessful. Could you plase take a look at my code let me know where I went wrong. It is as follows :
1)Created an ODBC connection for Microsoft Access called 'MSACCESS' (System DSN). And associated accdb1.mdb to this ODBC connection.
2)Created a table called orders in accdb1.mdb.
3)Added the foll lines in tnsnames.ora
accdb1 =
(DESCRIPTION=
(ADDRESS=
               (PROTOCOL=tcp)
               (HOST=kdandapani.170systems.com)
               (PORT=1521))
(CONNECT_DATA=(SERVICE_NAME=accdb1)
(HS=OK)
4)added the following lines in listner.ora :
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME=accdb1)
(ORACLE_HOME=c:\orasrv)
(PROGRAM=accdb1)
5) Copied inithsodbc.ora to iniths_accdb1.ora in the ORACLE_HOME/hs/admin directory. Added the following line there :
HS_FDS_CONNECT_INFO = MSACCESS
6)Created the foll dblink :
create database link access1
using 'accdb1';
7)tried to access table ORDERS in the MSACCESS database with the foll SQL -
select * from orders@access1;
Resulted in the foll error message
ERROR at line 1:
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hi,
I am new to Generic Connectivity i have just followed all the steps you wrote once in this forum but i m getting the following error :
SQL> SELECT * FROM LOGIN@MSACCESS;
SELECT * FROM LOGIN@MSACCESS
ERROR at line 1:
ORA-28509: unable to establish a connection to non-Oracle system
ORA-02063: preceding line from MSACCESS
Following are the steps you suggested in this forum :
1)Created an ODBC connection for Microsoft Access called 'MSACCESS'. And associated accdb1.mdb to this ODBC connection.
2)Created a table called ORDERS in accdb1.mdb.
3)Added the foll lines in tnsnames.ora
MSACCESS.170SYSTEMS.COM =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = kdandapani.170systems.com)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = MSACCESS)
(HS = OK)
4)This is how the listner.ora looks after I added SID_NAME=MSACCESS :
# LISTENER.ORA Network Configuration File: c:\orasrv\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC2))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = kdandapani)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = ORALOCAL)
(ORACLE_HOME = c:\orasrv)
(SID_NAME = ORALOCAL)
(SID_DESC =
(PROGRAM = extproc)
(SID_NAME = PLSExtProc)
(ORACLE_HOME = c:\orasrv)
(SID_DESC =
(PROGRAM = hsodbc)
(SID_NAME = MSACCESS)
(ORACLE_HOME = c:\orasrv)
5) Copied inithsodbc.ora to iniths_MSACCESS.ora in the ORACLE_HOME/hs/admin directory. Added the following line there :
HS_FDS_CONNECT_INFO = MSACCESS
6)Created the foll dblink :
create database link MSACCESS
using 'MSACCESS';
7)tried to access table ORDERS in the MSACCESS database with the foll SQL -
select * from orders@MSACCESS;
I have used my login table instead of orders. But i got an error that i have stated earlier.
Can you please help me ? if possible than please forward your reply to : [email protected]
-thank you man,
-imran

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My company has a server in the cloud, written using Ruby on Rails. The server is designed to work with a browser, so it communicates via standard HTTP.
The server has an SQL database.
The server sends and receives HTTP requests from clients, which are then used to either update the database or retrieve information from the database.
The database can be edited from a separate admin dashboard.
I have recently rewritten our client software as a native android app. The new app makes calls to the server that look like browser calls. I have used Eclipse to develop the Android app.
Sounds pretty standard so far, right? :-)
I now want to replace the Ruby on Rails server with a new Java server that I will write. I want to use Eclipse to develop the new server. During development, I want to be able to have the new Android app communicate with the development server software that will reside on my desktop.
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I looked at "Oracle Database Tools >> Connecting to an Oracle database" in the help files for OEPE 12.1.1. I tried going through the help files for Database connections, but I got to a "New Connection Profile" form that asks me for a SID, a user name, a password, etc. I don't have any of those. I tried to enter some data in the forms and ping the database, but I could not get any results from the ping. So my first question is: Do I have to sign up for an Oracle database in the cloud or is there a database contained within the OEPE software that I just installed. I will have to do the former anyway when I eventually deploy my new server software, so maybe the right thing to do is sign up for the "database in the cloud" service now, and use it during development.
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I wanted to add some information to my previous posting.
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2. I don't need anything fancy on the server side. The server will simply be a Java program that emits JSON responses to the client and receives URL-encoded form data from the client. The server program will also make database queries and update the database.
3. I don't understand how my native Android app will be able to communicate with my development server code running on my desktop. I want that communication to be over the internet, but my desktop does not have a static IP address, so I don't see how the app will be able to address the development server software on my desktop PC. I don't want to deploy the server software into the cloud every time I start a debug run, but I don't see any other way for my app to be able to address the server code over the Internet.
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hi,mdrake
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Hi All!
i have connected to Excel using Heterogeneous services Oracle generic connectivity. It's showing all the data in the excel sheets and describe the table(sheets) as wel.
But the operation like delete , insert and update are not working..
1) How can i get all these working?
SQL> desc class$@dlcompany2;
Name Null? Type
cno FLOAT(49)
cname VARCHAR2(32512 CHAR)
SQL> desc student$@dlcompany2;
Name Null? Type
sno FLOAT(49)
sname VARCHAR2(32512 CHAR)
SQL> desc lab$@dlcompany2;
Name Null? Type
LNO FLOAT(49)
LNAME VARCHAR2(32512 CHAR)
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delete from student$@dlcompany
ERROR at line 1:
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[Generic Connectivity Using ODBC][Microsoft][ODBC Excel Driver] Could not
delete from specified tables. (SQL State: S1000; SQL Code: -3049)
ORA-02063: preceding 2 lines from DLCOMPANY
SQL> insert into student$@dlcompany2
2 ("sno","sname")
3 values
4 (8,'hh');
insert into student$@dlcompany2
ERROR at line 1:
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SQL>
1 update student$@dlcompany2
2 set "sname"='tt'
3* where "sno"=7
SQL> /
update student$@dlcompany2
ERROR at line 1:
ORA-02047: cannot join the distributed transaction in progress
SQL> delete from student$@dlcompany2
2 where "sno"=7;
delete from student$@dlcompany2
ERROR at line 1:
ORA-02047: cannot join the distributed transaction in progress...
____________x____________________x_______________________
2) My main task is to getting the data from oracle table into Excel How can i do this Using Heterogeneous services Oracle generic connectivity?
I will be extremely Thankfull
Thanks
Rana Adnan

Hi Kim and ALL!!!!
1)for Access this works perfectly and insert the data in class@dlcollege.
when_button_pressed triggerDECLARE
     X NUMBER;
BEGIN
     FOR X IN (SELECT tno, tname FROM TEST)
     LOOP
          INSERT INTO CLASS@DLCOLLEGE
          ("cno","cname")
          VALUES
          (X.tno,X.tname);
     END LOOP;
     commit;
end;
2)For MS Excel it niether gives any error message nor insert the data in class$@DLCOMPANY3.
when_button_pressed trigger
DECLARE
     X NUMBER;
BEGIN
     FOR X IN (SELECT tno, tname FROM TEST)
     LOOP
          INSERT INTO class$@DLCOMPANY3
          ("cno","cname")
          VALUES
          (X.tno,X.tname);
     END LOOP;
     commit;
end;
Help needed for Excel?
Thanks
Rana Adnan

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