Retrieve password from public database-link

In the past we have created a public database-link to another database. Unfortunately we forgot the password and want to have it back. Sice the database-link is public, the password can not be found in user_db_links.
Is it possible to retrieve a password from a public database-link?

Hi,
I know resetting in an Option for you but in worst case. Coming to the point you can get from "sys.link$" But how far will work on 10g verison did not checked. Try and see
Ahh. sorry Why you try "select dbms_metadata.get_ddl(’DB_LINK’,’TEST’,user) from dual
it will give the script. If the password in encripted for 10g try with "link$" it will work.
- Pavan Kumar N
Edited by: Pavan Kumar on Nov 18, 2008 3:57 PM

Similar Messages

Query the column names from Public database links

Greetings,
I would like to retrieve the list of all the column names from a public database link. A regular ALL_TAB_COLUMNS doesn't seem to be working.
Thanks
John9569

Hi,
I think your DBA needed to create a synonym for you to have access of that remote database view.
CREATE SYNONYM synonym_name
FOR view_name@db_link;Then you can find the column names by
DESC synonym_nameGuru's , please correct me If I am wrong.
Thanks
Edited by: user10679113 on Mar 12, 2009 12:28 PM
Edited by: user10679113 on Mar 12, 2009 12:33 PM

Failed to retrieve data from the database/invalid argument provided when employing link between two web services datasources

Post Author: vpost
CA Forum: Data Connectivity and SQL
I am trying to join information from two related web services within CR XI. I have successfully set up the web services as data sources have been able to get to the point where I get good data back. However, when I try to pull in certain fields, I get an error that says "Failed to retrieve data from the database/invalid argument provided". Here's the scenario:
The web services are structured as follows:Web Service 1 (Artist) has attributes of Artist Name and Date of Birth.Web Service 2 (CD) has attributes of CD Title and Release Date. Underneath each CD are songs, each of which have a Song Title and Artist Name.
I have defined both web services and defined a link between Artist.Artist Name and CD/Song.Artist Name. I am able to run a report with Song Title and Date of Birth that crosses web services. I am able to run another report with Song Title and CD Title that crosses the different levels in the second web service. However, if I add CD Title to the first report or Date of Birth to the second (both of which effectively force CR to employ the link between the two web services AND the CD/Song hierarchical structure in the second web service, I get the aforementioned error.
Any assistance understanding how multiple web services can be linked in this manner would be greatly appreciated.
Thanks in advance.

Post Author: Mike Wright
CA Forum: Data Connectivity and SQL
Not sure about your exact situation, but having similar problem with another application and have tracked down to security. Added user to group Domain Admin and it works fine. It appears to be accessing a subdirectory which it does not have permission to use and then times out and returns the "invalid....". Seems that once the query just over a certain size (and I'm not sure what triggers this) it needs to make use of temparory file disk, intead of ram.
I'm still trying to track down which temporary it's trying to uses - so if you have any ques.
cheers

A question about CREATE PUBLIC DATABASE LINK and ORA-12154 error

Dear all,
I have a problem about public database link creation and I would appreciate if you could kindly give me a hand. I have the following connection parameters in my
tnsnames.ora file:
DGPAPROD.WORLD =
     (DESCRIPTION =
       (ADDRESS_LIST =
        (ADDRESS = (COMMUNITY=tcp.world)
          (PROTOCOL=TCP)(HOST=ORASR001)(PORT=1521)
       (CONNECT_DATA = (SID = DGPAPROD))
...Having the above mentioned parameters I can connect to this remote database directly in a SQL*Plus shell:
$ sqlplus username/[email protected] works pretty well and the connection is established without any problem.
Now, what I would like to do is to create a public database link to this remote database in order to avoid the user/connection switching for viewing the
content of this database. I proceeded according to the syntax indicated in the Oracle online documentation:
http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/statements_5005.htm#SQLRF01205
Therefore I run the following in order to create a public database link
CREATE PUBLIC DATABASE LINK SR001_dblink CONNECT TO user IDENTIFIED BY password USING 'DGPAPROD.WORLD';Apparently there is no error and the link is created successfully. However it cannot resolve the remote host and whenever I run the following query
(myenterprise is the name of a table in that remote database)
SELECT *
FROM myenterprise@SR001_dblink
ERROR at line 1:
ORA-12154: TNS:could not resolve the connect identifier specifiedWhat causes this problem?
Thanks in advance,
Kind Regards,
Dariyoosh

spajdy wrote:
You must have defined DGPAPROD.WORLD in tnsnames.oar on server where you DB is runnig.Hello there,
Thanks a lot for this nice solution. In fact I had to add the connection parameters into the tnsnames.ora file of the server on which the link was created (not the tnsnames.ora of my oracle client stored on the localhost)
After a bit googling I found another solution that allows to create the database link:
CREATE PUBLIC DATABASE LINK SR001_dblink CONNECT TO user IDENTIFIED BY password USING '(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (COMMUNITY=tcp.world)
(PROTOCOL=TCP)(HOST=ip_adresse)(PORT=1521)))(CONNECT_DATA = (SID = GPAPROD)))';Thanks a lot for your help!
Kind Regards,
Dariyoosh
Edited by: dariyoosh on 18 nov. 2009 07:15

Failure to retrieve data from the database (Vendor Code 6550)

I am having a trouble with two of the 6 reports that I have created. I am using Crystal XI and Oracle 10g. The underlying database object is a stored procedure that accepts as input a start time as a TIMESTAMP, an end time as a TIMESTAMP and a furnace number as a number. I have a cursor ref as a return parameter.
When I run the stored procedure in Oracle I get the selected records and can view them on the screen.
When I refresh data on the report in Crystal XI developer, the designer asks me for the start and end time and furnace number. When I input these values the report displays properly.
When I launch the report from my VB .NET 2005 application I am asked for the username and the password for the database (this is another problem I need to solve as this information I put into the program seems to be ignored in my program) then I receive the following failure message:
Failure to retrieve data from the database (Vendor Code 6550)
When I launch the other reports, they only ask me for the username and password then they display the proper data.
The main difference between my other reports and the two that are returning the above failure code is that the other reports are to either tables or views. The two that don't work are tied to stored procedures. I there any way that I can solve this problem or at least get more information?
Any help would be greatly appreciated. Let me know if you need any other information.

I have a similar problem, the only difference is that the crystal report error is only thrown when I try to load the sub reports at my web application. When I deploy my report to the Web application the main report loads up fine but when I try to launch the sub reports from the main report it can no longer load.
But when I use the Crystal report developer I am able to load the main report and it's associated sub reports without any issues.
My issue only occurs when I try to load the sub report in the web application. The following sections shows how my reports look like both in my .NET web application and also at the Crystal Report Development IDE.
Failure: Loading my Reports from .NET Web Application
1) When I load from the web application I am able to load the main report as per the print screen below.
2) When I try to click on the hyper links to enter the sub reports I am now able to load them, both sub reports cannot load and will throw the same error "
Failed to retrieve data from the database. Details: [Database Vendor Code:
6550 ] Failed to retrieve data from the database. Details: [Database Vendor
Code: 6550 ] Failed to retrieve data from the database. Error in File OAWR3011A
{CEC8A94A-4490-4640-95FB-2739A679978B}.rpt: Failed to retrieve data from the
database. Details: [Database Vendor Code: 6550 ] "
Success: Loading my Reports from Crystal Report Development Tool
1) This is my Main Report Loaded from the Crystal Report Development Tool, the first two hyperlinked fields are links to my sub reports, step number 2 and number 3 shows my sub reports when I load it using Crystal Report Developer
2) Sub Report 1 Loaded Successfully, when I click on the fields in the first link
3) Sub Report 2 loaded successfully when I click the second field hyper link

Public Database Link

Hi All,
I am using Oracle 10g.
I created one Public database link as :
i created this database link by connecting ora1.
CREATE PUBLIC DATABASE LINK "ora2_1" CONNECT TO CURRENT_USER
USING 'ora2';
When i run the select query i am getting error. as:
i run this select query by connecting ora1 database.
SQL> SELECT * FROM C_UPDT@ora2_1;
SELECT * FROM C_UPDT@ora2_1
ERROR at line 1:
ORA-01017: invalid username/password; logon denied
ORA-02063: preceding line from ora2_1
What could be the problem.
Thanks

Hi..
I want to use that link for all schemas existed in ora2.so, i didnot specify the username, password.
>
The database link connects to the only one schema per db link in the target database.If you specify PUBLIC, then all the schemas in the source database (where the db link is created) can use and access data through it.So, if you want to create public database link for all the schemas in the target database ORA2, then you will have to create as many as schemas are present in ORA2.
Anand

Cann't Drop public database link

I am not able to drop public database link .
Oracle Version - 11.2.0.1.0 - 64bit Production
Os Version - Sun Solaris .
When I am going to drop a public database link it's give a error :
SQL Error: ORA-00604: error occurred at recursive SQL level 1
ORA-20000: Can not drop Object
ORA-06512: at line 2
00604. 00000 - "error occurred at recursive SQL level %s"
Can anyone help to resolve this problem? It is a Production Database and it's a Urgent .
Thanks,
Dip Sankar Rana

You say:
I already given syntax of creating Public database link.
But you should give real details (exact statements and exact results) to make it clear what you are attempting and what your problem is.
Please show:
- The CREATE PUBLIC DATABASE LINK statement (obscuring the password, of course) and its result (i.e. success or failure message)
- From each of schema1 (working) and schema2 (not working):
- - The result of SELECT USER FROM DUAL;
- - The result of SELECT USER FROM DUAL@DB_TST;
- - The result of SELECT COUNT(*) FROM ALL_OBJECTS@DB_TST WHERE OWNER = 'B1';
In the meantime, an observation.
You said:
I create a public db link from schema1 to other database using below command --
CREATE PUBLIC DATABASE LINK DB_TST
CONNECT TO B1 IDENTIFIED BY password
USING 'SPPROD'Note that any user (in caps: ANY USER) on this database can use this link to connect to database SPPROD as B1 without knowing the password - because you put the credentials in the link.
If you have a PUBLIC database link with credentials, like you do here, you have a serious, glaring security exposure. You really, REALLY should not do this. Use a private database link (available only to the user that created it) or do not put credentials on the link (so that any user using that link is using his own credentials to connect to the remote database).
Edited by: mtefft on Jan 14, 2011 4:14 AM

How to Create Public database link in oracle 9i?

Friends,
OS: RHEL AS 3
DB: 9iR2
database name 1 = nubul
database name 2 = test
in the 'nubul' database server using system user.
i created a database link to connect the 'test' database
sql> create public database link test using 'test';
database link created.
then i logged in as normal user....
sql> select count(*) from employee@test
Error at line 1:
ORA-12154: TNS: could not resolve service name
where i am making mistake?
i gave the linkname as my remote database name.
am i have to make any entry in the tnsnames.ora?
thanks & regards

You have to remember that when you access a dblink, the database where the link is defined is acting as a client to the database to which the link points ... exactly the same as if you you were using sqlplus on the machine hosting the db where the link is defined. In other words, given:
Host 'Host-src', with database 'db-src', with a dblink 'lk_target'
Host 'host-trgt', with database 'db-trgt'
When you connect to db-src and access lk-target, db-src is now acting as a client to db-trgt. Exactly as if you had opened sqlplus on host-src and connected directly to db-trgt. So, given the above scenario
host-src$> sqlplus scott/tiger@db-src
sql> select * from emp@lk_target;when you execute that SELECT to the link, the same tns considerations are in effect as if you had
host-src$> sqlplus scott/tiger@db-trgtThe same tnsnames.ora entry, on the source machine, is required for both.

ORA-31600 when trying to view SQL DDL for a created public database link

I created and committed a public database link and I can access the external database.
When I try to view the DDL of the link, on the SQL tab, I'm getting following error:
ORA-31600: invalid input value EMIT_SCHEMA for parameter NAME in function SET_TRANSFORM_PARAM
ORA-06512: at "SYS.DBMS_SYS_ERROR", line 105
ORA-06512: at "SYS.DBMS_METADATA_INT", line 3900
ORA-06512: at "SYS.DBMS_METADATA_INT", line 4048
ORA-06512: at "SYS.DBMS_METADATA", line 836
ORA-06512: at line 1
and
ORA-31600: invalid input value LONGNAME for parameter NAME in function SET_FILTER
ORA-06512: at "SYS.DBMS_SYS_ERROR", line 105
ORA-06512: at "SYS.DBMS_METADATA_INT", line 1980
ORA-06512: at "SYS.DBMS_METADATA_INT", line 3665
ORA-06512: at "SYS.DBMS_METADATA", line 670
ORA-06512: at "SYS.DBMS_METADATA", line 571
ORA-06512: at "SYS.DBMS_METADATA", line 1221
ORA-06512: at line 1
Is this because of a bug in SqlDeveloper or because the db_link and host parameters have 33 characters?
I'm using sql developer 1.5.3, build MAIN-5783
tx,
Roger Vermeir

It's probably the length; really all sqldev does is calling:
select DBMS_METADATA.get_ddl('DB_LINK',:NAME,:OWNER) FROM dual;So if you call it a bug, it's a database bug in the DBMS_METADATA package.
But if you work with identifiers over 30 chars, I'd say that's a bug on it's own...
FWIW, I can't reproduce this on our 10g DB; are you on 9i?
Regards,
K.

Cannot drop public database link

Hi all.
Just trying to drop some old database links and getting the following:
SQL> select * from dba_db_links where host = 'V638';
OWNER DB_LINK USERNAME HOST CREATED
PUBLIC V638 SYSADM V638 23-SEP-04
SQL> drop public database link V638;
drop public database link V638
ERROR at line 1:
ORA-02024: database link not found
There was another db link in there called V638.WORLD and when I issued
drop public database link v638 it removed that one with no errors...
Any way I can get rid of this other one?
Version info:
Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
PL/SQL Release 9.2.0.4.0 - Production
CORE 9.2.0.3.0 Production
TNS for Solaris: Version 9.2.0.4.0 - Production
NLSRTL Version 9.2.0.4.0 - Production
Thanks

Yes I already tried that...
SQL> select * from global_name;
GLOBAL_NAME
VTEST1.WORLD
SQL> alter database rename global_name to test.world;
Database altered.
SQL> alter database rename global_name to test.world;
Database altered.
SQL> select * from global_name;
GLOBAL_NAME
TEST.WORLD
SQL> drop public database link v638;
drop public database link v638
ERROR at line 1:
ORA-02024: database link not found
SQL> alter database rename global_name to vtest1.world;
Database altered.
SQL> select * from global_name;
GLOBAL_NAME
VTEST1.WORLD

Failed to Retrieve Data from the database.

getting the following error message stating that
Failed to retrieve data from the database.
Details:4200:[Microsoft][ODBC SQL server Driver][SQL server] Incorrect syntax near 'Category ID', [Database Vendor Code: 102],
i am not sure why I am getting above error message when running the report.
I have a view linked to table. The Category ID is in View that I have created.
need your help if you know what steps I should take to reslove the issue, thanks!
mansoor

Hi,
Are all your data in the View or each time you run a query it update the View? Please try to update your View then run the Report again, much better if you delete the original View and replace with a new one,
Regards,
CLint

Failed to retrieve data from the database using Crystal Reports XI R2

I am using Crystal reports XI R2 and using the Universal Web Connector (connecting to Coghead). When I put some some of the fields from the database and run Preview I get "Failed to retrieve data from the database." . Where is this message coming from and how can I track down what the issue is?

Hi Jamie,
When you are trying to Browse Data of a field it is not poping up any window menas, it is unable to interact with database and get the data from database.
Try to create a new report using ODBC with Xtreem Sample Database. If you get the data in your report without any error then your connector is not working / unable to pull the data into your report.
You can find the supported platforms document in below link
http://support.businessobjects.com/documentation/supported_platforms/xi_release2/default.asp
Thanks,
Sastry

Failed to retrieve data from the database (Apache derby). Details: java.lang.reflect.InvacationTargetException

Post Author: johnnighter
CA Forum: Data Connectivity and SQL
Hi,Good Day !I followed crxi_java_bean_data_source.pdf to setup and configure Crystal Report XI (Product Version 11.0.0.1282, CR Developer; Product Type: Full).Below is the sample code.import java.sql.*;public class CRSampleDataSourceBean { private ResultSet resultSet = null; private Connection connection = null; private String connectionURL = "jdbc:derby:MyDatabase"; private String databaseClass = "org.apache.derby.jdbc.EmbeddedDriver"; private String query = "SELECT * FROM CUSTOMER"; public CRSampleDataSourceBean() { try { Class.forName(databaseClass); connection = DriverManager.getConnection(connectionURL, "", ""); } catch (ClassNotFoundException ex) { System.out.println("Ensure that database driver class is installed."); ex.printStackTrace(); } catch (SQLException ex) { System.out.println("SQL Exception #" + ex.getErrorCode() + " : " + ex.getLocalizedMessage()); ex.printStackTrace(); } } public ResultSet getResultSet() throws SQLException { Statement statement = connection.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); resultSet = statement.executeQuery(query); return resultSet; }}Compile no error. It display at the "Java Beans Connectivity" screen, and able to select from the "Java Bean Classes" combobox.It display at the "Available Data Sources" (left hand side) with database name CRSampleDataSourceBean->getResultSet. BUT when click the ">" or ">>" button, it display an error message "Failed to retrieve data from the database. Details: java.lang.reflect.InvacationTargetException". Please advice. regards,johnnighter

Post Author: pvierheilig
CA Forum: Crystal Reports
Have you been able to resolve this yet? I don't have any reference to Oracle error codes but would suspect a quick Google of something like 'Oracle error code 997' should result in good information, since it is an Oracle error...
Hope this helps.

Failed to retrieve data from the database when adding jdbc datasource

I'm having problems adding some tables to the selected tables list using the database expert.
I get the error messages "Failed to retrieve data from the database" followed by "Unknown Database Connection Error".
I thought it may be a permissions issue as it only affects some tables, but I can access the same tables fine using the same user through Oracle SQL Developer.
The database is Oracle 10g Express Editions
Crystal version is 12.0.0.683
Running on Windows XP
Any suggestions would be much appreciated.

Hi Stuart
Please refer SAP note 1218714 for this issue. The link to this article ia as follows:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes/sdn_oss_boj_erq/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes%7B6163636573733d36393736354636443646363436353344333933393338323636393736354637333631373036453646373436353733354636453735364436323635373233443330333033303331333233313338333733313334%7D.do
You can search for this note on the SDN site.
Hope this helps.
Thanks!

Restriction on accessing public database link

How to restrict certain users from accessing public database link.

ravi02, sb has pretty much nailed the answer in that if you make the link public then anyone can use it. However, is the link in question a fixed user link or a current session user link? With a fixed user link then whatever access is granted to the fixed user is available to any user who has access to your instance. On the other hand if each user is required to have their username created on the remote instance then object and role grants issued on the remote instance can still limit what objects a user may reference.
HTH -- Mark D Powell --

Retrieve password from public database-link

Similar Messages

Maybe you are looking for