Import database links

Is this possible to import only database links from dmp file??
Edited by: tutus on Sep 30, 2008 5:31 AM

Then I import database again, but without data in table :)
I have this situation. First import create 10GB file, but without data in tables dmp file have only 30 MB ;)

Similar Messages

Can database link get metadata location when import database objects ?

I used database link to connect remote database . but i couldn't use it to get metadata location when i import database objects in OWB. OWB required me to create a new location which is diffirent from database link. I couldn't see a location, its type is database link. Anyone suggest me a answer ?
Edited by: hungsao on Oct 17, 2012 9:28 PM

Thank David Allen !
i can't see locations, that have type being database link from location's list in metadata location but i can see them from data locations.
When i add new location A ,its type isn't database link then i can see it ( location A) from metadata location, data locations
And when i view data from table imported , i get this error : " Data location not specified or does not currently support data viewing. Check if this object's owning module is configured with a location that support data viewing"
Please help me

How can you SELECT via Database Link CLOB data using Application Express?

Customer Issue:
Developer using Oracle's Application Express 3.1. The Developer is trying to SELECT a CLOB datatype column from a remote (10.2.0.3) database, via a database link on her 10.2.0.4 based client Application. The Developer wants to be able to select CLOB data from the remote database which has limitation that she can't make any changes to the remote database.
Developer's Comments:
I do a select and get the error. Getting error ORA-22992: cannot use LOB locators selected from remote tables. So she feels she can't use dbms_lob.substr in this configuration I can do a "select into" but that is for one value. I am trying to run a select statement for a report that brings back more than one row. I do not have permission to change anything on the remote database. I want to access the remote database and multiple tables.
This is not something I work with, would greatly appreciate help or ideas. Is this a limitation of the 3.1; or does she just not have this set up correctly; or should she be using a Collection (if yes, please share example)
Thanks very much,
Pam
Edited by: pmoutrie on Jun 4, 2009 12:01 PM
Hello???
Would really appreciate an answer.
Thanks,
Pam

This may not be a perfect solution for you but it worked for my situation.
I wanted to grab some data from Grid Control's MGMT$JOB_STEP_HISTORY table but I couldnt' create an Interactive Report due to the existance of a CLOB column. I cheated this by creating a view on the GC DB, grabbing the first 4000 characters and turning it into a varchar2 column:
create view test_job_step_history as
select job_Name, target_name, status, start_time, end_time, to_char(substr(output,1,4000)) output
from MGMT$JOB_STEP_HISTORY where trunc(end_time) > trunc(sysdate)-90
In an APEX Interactive Report:
select * from test_job_step_history@GCDB
Granted, the output looks aweful right now but I am only looking for a very particular output (failed, denied, ORA-, RMAN-, etc) so the formatting isn't the most important thing to me right now.
If anyone can improve -- and I'm sure you can -- on this I'd love to hear about it.
Thanks,
Rich

Unable to access remote database object using database link

Hi all,
I have created a database link to a remote server
SQL> create database link remote_link connect to lax_dba identified by lax_dba using 'abc.corp.com';
database link created
when i am trying to access any table of lax_dba
sql> select * from laxtab@remote_link;
i am getting this Ora error
ORA-12514: TNS:listener does not currently know of service requested in connect
I need your help please to solve this issue
Thanks n Regards
Laxman

The database server where you defined the link (not your PC) has resolved 'abc.corp.com' to a server/port/service combination using its tnsnames.ora, sqlnet.ora and possibly ldap.ora settings. You can try
tnsping abc.corp.comon the server (as ReubenC suggested) to see what it's attempting to connect to. (It's important to do this on the database server and not on your PC as they will have different tns settings etc.)
It has then found the server and found a listener running on it (so you're getting close), but that remote listener doesn't recognise the service you're asking for. It might be something like the '.com' suffix.

Database Link in the OWB

We are trying to deploy a map that needs to use a database link to access the source table in another server. We could create database link on OWB and import tables. When we deployed it we receive the first error "VLD-2771: System privileges may not allow extraction from source PROD_TAX_AVG" and after "table or view does not exists". The privileges was granted and we can test the access in SQLPLUS using the database link created.
Anybody knows this issue ?
Thanks,
Ricardo

Hi Ricardo,
The message "VLD-2771: System privileges may not allow extraction from source PROD_TAX_AVG" is merely a warning, this can (generally) be ignored.
After deploying your mapping check the PL/SQL code deployed and try to identify where the problem is.
I have encountered the issue before where the schema name is configured for the mapping overriding the location defined parameters.
To check this in the Design repository, right-click the mapping and click 'Configure'.
Expand 'Sources and Targets' and check the schema name is not hard-coded.
Cheers.

Issue while creating location with database link

Hi all,
I am using OWB 10.2.0.4.0 (same Oracle DB version). I am trying to create a location using a database link.
When I select the location which the database link is located (From location drop-down list), I face the following error.
>
ENV0036: The selected location is not valid.
ENV0036: The selected location is not valid.
     at oracle.wh.service.sdk.integrator.RepositoryUtils.createDBLinkWithLocation(RepositoryUtils.java:156)
     at oracle.wh.ui.environment.wizards.DatabaseLinkComponent.init(DatabaseLinkComponent.java:61)
     at oracle.wh.ui.environment.wizards.DatabaseLinkComponent.reload(DatabaseLinkComponent.java:204)
     at oracle.wh.ui.environment.wizards.FromLocationComponent.itemStateChanged(FromLocationComponent.java:111)
     at javax.swing.JComboBox.fireItemStateChanged(JComboBox.java:1162)
     at javax.swing.JComboBox.selectedItemChanged(JComboBox.java:1219)
     at javax.swing.JComboBox.contentsChanged(JComboBox.java:1266)
     at javax.swing.AbstractListModel.fireContentsChanged(AbstractListModel.java:100)
     at javax.swing.DefaultComboBoxModel.setSelectedItem(DefaultComboBoxModel.java:88)
     at javax.swing.JComboBox.setSelectedItem(JComboBox.java:551)
     at javax.swing.JComboBox.setSelectedIndex(JComboBox.java:597)
     at javax.swing.plaf.basic.BasicComboPopup$ListMouseHandler.mouseReleased(BasicComboPopup.java:749)
     at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:232)
     at java.awt.Component.processMouseEvent(Component.java:5100)
     at javax.swing.plaf.basic.BasicComboPopup$2.processMouseEvent(BasicComboPopup.java:452)
     at java.awt.Component.processEvent(Component.java:4897)
     at java.awt.Container.processEvent(Container.java:1569)
     at java.awt.Component.dispatchEventImpl(Component.java:3615)
     at java.awt.Container.dispatchEventImpl(Container.java:1627)
     at java.awt.Component.dispatchEvent(Component.java:3477)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483)
     at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3198)
     at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128)
     at java.awt.Container.dispatchEventImpl(Container.java:1613)
     at java.awt.Window.dispatchEventImpl(Window.java:1606)
     at java.awt.Component.dispatchEvent(Component.java:3477)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:480)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:141)
     at java.awt.Dialog$1.run(Dialog.java:542)
     at java.awt.Dialog$3.run(Dialog.java:569)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.awt.Dialog.show(Dialog.java:567)
     at java.awt.Component.show(Component.java:1133)
     at java.awt.Component.setVisible(Component.java:1088)
     at oracle.bali.ewt.wizard.WizardDialog.runDialog(Unknown Source)
     at oracle.bali.ewt.wizard.WizardDialog.runDialog(Unknown Source)
     at oracle.wh.ui.owbcommon.OWBWizard.initialize(OWBWizard.java:815)
     at oracle.wh.ui.owbcommon.OWBWizard.<init>(OWBWizard.java:168)
     at oracle.wh.ui.owbcommon.OWBWizard.<init>(OWBWizard.java:147)
     at oracle.wh.ui.owbcommon.IdeUtils._doLaunchDefinition(IdeUtils.java:1188)
     at oracle.wh.ui.owbcommon.IdeUtils.showWizard(IdeUtils.java:471)
     at oracle.wh.ui.owbcommon.IdeUtils.showWizard(IdeUtils.java:427)
     at oracle.wh.ui.jcommon.tree.WBRepositoryObjectTree.launchWizard(WBRepositoryObjectTree.java:502)
     at oracle.wh.ui.console.commands.CreateByWizardCmd.showUI(CreateByWizardCmd.java:33)
     at oracle.wh.ui.console.commands.CreateCmd.performAction(CreateCmd.java:76)
     at oracle.wh.ui.console.commands.TreeMenuHandler$1.run(TreeMenuHandler.java:188)
     at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:189)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:478)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
>
Could you please let me know how to solve this and how to create such location with OMB*Plus?
Thanks,
Sebastian

Hi David,
Thanks a lot for the tip. Now I was able to use this and using a registered location.
OMBCREATE LOCATION 'X' SET PROPERTIES (TYPE,VERSION,CONNECTION_TYPE, SCHEMA) VALUES ('ORACLE_DATABASE','11.1','DATABASE_LINK','MY_SCHEMA')
OMBCREATE CONNECTOR 'REGISTERED_LOC/X SET PROPERTIES (DATABASE_LINK_NAME) VALUES ('MY_DBLINK') SET REF LOCATION 'X'
OMBCOMMIT
OMBCC '/MY_PROJECT'
OMBCAC 'DEFAULT_CONFIGURATION'
OMBCONNECT CONTROL_CENTER USE 'owb_user/owb_user'
OMBREGISTER LOCATION 'X' REUSE
OMBCOMMITBut now my question is the following.
I am having problems to import the metadata from X.
When create a module (source), I am able to make "data location" from location 'X' but when I want to import a table from location 'X' is not possible, because it shows as a plausible metadata location as "REGISTERED_LOC"
Could you please let me know how to use 'X' as metadata location?
Thanks!
Sebastián

How to register a Location with database link in Ombplus?

Hello,
what's the detailed syntax in owb 10.2 to register a location with a database link?

Hi,
thanks that helps.
Now i found out that after an import of the location the field "from Location" is not set. I need to set it to OWB_REPOSITORY_LOCATION.
How can i do it?
OMBALTER LOCATION 'Locname' SET PROPERTIES (FROM_LOCATION) VALUES ('OWB_REPOSITORY_OWNER') does not work
-> Property FROM_LOCATION is not defined in class ORACLE_GATEWAY_LOCATION
Cann you help me again?
Thanks
Helga

Persistent Layer Error Message: ORA-01729 database link name expected

Hi,
I've done a series of loads from DB2 into Oracle, initially importing the database objects from DB2 and Oracle, then creating the mappings, deploying and executing. It all worked and I had no problems. For some reason now whenever I tried to import a new Database Object (table) from the DB2 I enter the password, test it and it successfully connects but then I get the error message on a popup box:
SQL Exception
Persistent Layer Error: SQL Exception
Class Name: CacheMediator
Method Name: getSQLResult
Persistent Layer Error Message: ORA-01729 database link name expected
If I create a new location for the same database it works and I can import new objects. The only difference I can think from the initial imports is that I’ve moved the repository from one server to another. Might be the case where some information got corrupted in the metadata.
Has anyone seen this kind of problem before? Can you please help me out with this issue?
Thanks in advance for your help.
Regards,
Leo

I found it.When I look at the db links there is something missing.When I correct it everything works fine.

Import database from Linux to Windows fails with creating tablespaces

Using (Oracle10g/Linux) user/schema (i think)"Sys" i exported succesfully full database and produced a log file which looks like this:
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in UTF8 character set and AL16UTF16 NCHAR character set
server uses AL32UTF8 character set (possible charset conversion)
Note: table data (rows) will not be exported
About to export the entire database ...
exporting tablespace definitions
exporting profiles
exporting user definitions
exporting roles
exporting resource costs
exporting rollback segment definitions
exporting database links
. exporting sequence numbers
exporting directory aliases
exporting context namespaces
exporting foreign function library names
exporting PUBLIC type synonyms
exporting private type synonyms
exporting object type definitions
exporting system procedural objects and actions
exporting pre-schema procedural objects and actions
exporting cluster definitions
about to export SYSTEM's tables via Conventional Path ...
exporting table                    DEF$_AQCALL
exporting table                   DEF$_AQERROR
exporting table                  DEF$_CALLDEST
EXP-00091: Exporting questionable statistics.
Export terminated successfully with warnings.Now (in Oracle10 Express/ Windows) i'm importing the dmp-file using user/schema System, following errors occur:
Connected to: Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production
Export file created by EXPORT:V10.02.01 via conventional path
Warning: the objects were exported by SYS, not by you
import done in AL32UTF8 character set and AL16UTF16 NCHAR character set
export client uses UTF8 character set (possible charset conversion)
. importing SYSTEM's objects into SYSTEM
IMP-00017: following statement failed with ORACLE error 1119:
"CREATE UNDO TABLESPACE "UNDOTBS1" BLOCKSIZE 8192 DATAFILE '/u01/app/oracle"
"/oradata/live/undotbs01.dbf' SIZE 251658240       AUTOEXTEND ON NEXT 524288"
"0 MAXSIZE 32765M EXTENT MANAGEMENT LOCAL "
IMP-00003: ORACLE error 1119 encountered
ORA-01119: error in creating database file '/u01/app/oracle/oradata/live/undotbs01.dbf'
ORA-27040: file create error, unable to create file
OSD-04002: unable to open file
O/S-Error: (OS 3) The system cannot find the path specified.
IMP-00015: following statement failed because the object already exists:
"CREATE TABLESPACE "SYSAUX" BLOCKSIZE 8192 DATAFILE '/u01/app/oracle/oradat"
"a/live/sysaux01.dbf' SIZE 346030080       AUTOEXTEND ON NEXT 10485760 MAXS"
"IZE 32765M EXTENT MANAGEMENT LOCAL AUTOALLOCATE ONLINE PERMANENT SEGMENT"
" SPACE MANAGEMENT AUTO"
IMP-00000: Import terminated unsuccessfullyWhy i get those errors when importing? Seems like the main problem is that the export was done in Linux which have it's own directories like '/u01/app/oracle/oradat' and others but in my Windows OS those folders don't exist? The whole import fails because tablespaces couldn't be created, later Schemas couldn't be created and tables also. Can i get the import work somehow?
I runned the import as following:
C:\Users\charlesr>imp userid=system/a FULL=Y FILE=exp_ddl.dmp log=imp.logMy Oracle 10 XE is installed into folder:
D:\oraclexe\app\oracle\product\10.2.0Maybe i should run the import command in drive D where my Oracle lives, not in drive C as i did?
And now when i tried to run the import on drive C, seems like my database user "system/a" is corrupted or password corrupted:
C:\Users\charlesr>d:
D:\>imp userid=system/a FULL=Y FILE=exp_ddl.dmp log=imp.log
Import: Release 10.2.0.1.0 - Production on R Sept 10 17:32:25 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
IMP-00058: ORACLE error 1017 encountered
ORA-01017: invalid username/password; logon deniedUsername:I think i don't have on OS level rights to write to C-drive, that's why i got errors. But now i can't log in with system/a, why so?
Edited by: CharlesRoos on Sep 10, 2010 7:38 AM

CharlesRoos wrote:
Why i get those errors when importing? Seems like the main problem is that the export was done in Linux which have it's own directories like '/u01/app/oracle/oradat' and others but in my Windows OS those folders don't exist? The whole import fails because tablespaces couldn't be created, later Schemas couldn't be created and tables also. Can i get the import work somehow?Precreate tablespaces. You could use import option show=y to capture import run statements and find CREATE TABLESPACE statements. Keep in mind your target database already has undo, temp system, etc. tablespaces so you do not need to precreate them. Then rerun import.
SY.

Oracle Streams 9i Database Link Error

Can anyone be help me regarding Oracle Streams 9i
Oracle Version: 9.2.0.5.0
Initial parameters:
global_name=true
aq_tm_processes=1
job_queue_process=10
log_parallelism=1 scope=spfile
database is in archivelog;
I executed the following SQL statements:
CONNECT sys/xxxxx@db1 AS SYSDBA
CREATE USER strmadmin IDENTIFIED BY strmadminpw
DEFAULT TABLESPACE users QUOTA UNLIMITED ON users;
GRANT CONNECT, RESOURCE, SELECT_CATALOG_ROLE TO strmadmin;
GRANT EXECUTE ON DBMS_AQADM TO strmadmin;
GRANT EXECUTE ON DBMS_CAPTURE_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_PROPAGATION_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_STREAMS_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_APPLY_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_FLASHBACK TO strmadmin;
BEGIN
DBMS_RULE_ADM.GRANT_SYSTEM_PRIVILEGE(
privilege => DBMS_RULE_ADM.CREATE_RULE_SET_OBJ,
grantee => 'strmadmin',
grant_option => FALSE);
END;
BEGIN
DBMS_RULE_ADM.GRANT_SYSTEM_PRIVILEGE(
privilege => DBMS_RULE_ADM.CREATE_RULE_OBJ,
grantee => 'strmadmin',
grant_option => FALSE);
END;
CONNECT strmadmin/strmadminpw@db1
EXEC DBMS_STREAMS_ADM.SET_UP_QUEUE();
CREATE DATABASE LINK db2 CONNECT TO strmadmin IDENTIFIED BY strmadminpw USING 'DB2';
CONNECT sys/xxxxx@db2 AS SYSDBA
CREATE USER strmadmin IDENTIFIED BY strmadminpw
DEFAULT TABLESPACE users QUOTA UNLIMITED ON users;
GRANT CONNECT, RESOURCE, SELECT_CATALOG_ROLE TO strmadmin;
GRANT EXECUTE ON DBMS_AQADM TO strmadmin;
GRANT EXECUTE ON DBMS_CAPTURE_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_PROPAGATION_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_STREAMS_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_APPLY_ADM TO strmadmin;
GRANT EXECUTE ON DBMS_FLASHBACK TO strmadmin;
BEGIN
DBMS_RULE_ADM.GRANT_SYSTEM_PRIVILEGE(
privilege => DBMS_RULE_ADM.CREATE_RULE_SET_OBJ,
grantee => 'strmadmin',
grant_option => FALSE);
END;
BEGIN
DBMS_RULE_ADM.GRANT_SYSTEM_PRIVILEGE(
privilege => DBMS_RULE_ADM.CREATE_RULE_OBJ,
grantee => 'strmadmin',
grant_option => FALSE);
END;
CONNECT strmadmin/strmadminpw@db2
EXEC DBMS_STREAMS_ADM.SET_UP_QUEUE();
CONNECT sys/xxxxx@db2 as sysdba
GRANT ALL ON scott.dept TO strmadmin;
CONNECT sys/xxxxx@db1 AS SYSDBA
CREATE TABLESPACE logmnr_ts DATAFILE 'D:\oracle\oradata\db1\logmnr01.dbf'
SIZE 25 M REUSE AUTOEXTEND ON MAXSIZE UNLIMITED;
EXECUTE DBMS_LOGMNR_D.SET_TABLESPACE('logmnr_ts');
CONNECT sys/xxxxx@db1 AS SYSDBA
ALTER TABLE scott.dept ADD SUPPLEMENTAL LOG GROUP log_group_dept_pk (deptno) ALWAYS;
CONNECT strmadmin/strmadminpw@db1
BEGIN
DBMS_STREAMS_ADM.ADD_TABLE_PROPAGATION_RULES(
table_name => 'scott.dept',
streams_name => 'db1_to_db2',
source_queue_name => 'strmadmin.streams_queue',
destination_queue_name => 'strmadmin.streams_queue@db2',
include_dml => true,
include_ddl => true,
source_database => 'db1');
END;
CONNECT strmadmin/strmadminpw@db1
BEGIN
DBMS_STREAMS_ADM.ADD_TABLE_RULES(
table_name => 'scott.dept',
streams_type => 'capture',
streams_name => 'capture_simp',
queue_name => 'strmadmin.streams_queue',
include_dml => true,
include_ddl => true);
END;
Did this exp/imp
exp userid=scott/tiger@db1 FILE=dept_instant.dmp TABLES=dept OBJECT_CONSISTENT=y ROWS=n
imp userid=scott/tiger@db2 FILE=dept_instant.dmp IGNORE=y COMMIT=y LOG=import.log STREAMS_INSTANTIATION=y
and then
CONNECT sys/xxxxx@db2 AS SYSDBA
ALTER TABLE scott.dept DROP SUPPLEMENTAL LOG GROUP log_group_dept_pk;
CONNECT strmadmin/strmadminpw@db2
BEGIN
DBMS_STREAMS_ADM.ADD_TABLE_RULES(
table_name => 'scott.dept',
streams_type => 'apply',
streams_name => 'apply_simp',
queue_name => 'strmadmin.streams_queue',
include_dml => true,
include_ddl => true,
source_database => 'db1');
END;
CONNECT strmadmin/strmadminpw@db2
BEGIN
DBMS_APPLY_ADM.SET_PARAMETER(
apply_name => 'apply_simp',
parameter => 'disable_on_error',
value => 'n');
DBMS_APPLY_ADM.START_APPLY(
apply_name => 'apply_simp');
END;
CONNECT strmadmin/strmadminpw@db1
BEGIN
DBMS_CAPTURE_ADM.START_CAPTURE(
capture_name => 'capture_simp');
END;
Here is my problem:
After i configured it the streams still cannot replicate. And when I checked the EM GUI for streams monitoring it displays a broken database link.
Also it says that the database link is not active.
Can anyone please help?
Thanks.

I don't know what Datacomp is, but you should be able
to connect to any non-Oracle database if there is
an ODBC driver for it. You would use Generic
Heterogeneous Services to do this. See the following
link to the documentation for details:
http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96544/gencon.htm#1656
There are also several articles on the Net. Do a google
search on oracle generic heterogeneous services /
connectivity.
Hope this helps.
Kailash.

ORA-00022 with Database Link and Trigger

Hello altogether,
I got a very strange behaviour with my oracle 10.2.
I have two nets N1 and N2, where N1 can access the servers in N2, but not the other way round. In both nets I have an Oracle database running (D1 and D2).
In N1 I calculate some data, which must be replicated to the database in N2. I do this by using triggers on my tables in database D1 copying the inserted or changed data to D2 by using a shared public database link.
This works fine most of the time. But sometimes I get the following error:
ERROR [STDERR] Caused by: java.sql.SQLException: ORA-02068: following severe error from D2
ORA-00022: invalid session ID; access denied
ORA-06512: at "CUSTOMER", line 13
ORA-04088: error during execution of trigger 'CUSTOMER'
When I use the database links manually, they work.
Any idea?
Thank you!!
Daniel

The ORA-02068 message might be important
02068, 00000, "following severe error from %s%s"
// *Cause: A severe error (disconnect, fatal Oracle error) received from
// the indicated database link. See following error text.
// *Action: Contact the remote system administrator.Have you searched Oracle support for any bugs associated with the ORA-02068?
Was the remote session killed, the remote database changed to restricted session, or bounced?
I take it the distributed session is created using a dedicated session and not shared server?
HTH -- Mark D Powell --

Changing database links in query's

I'm currently using query's with a syntax like 'select * from table@dblink'. Works fine, however the dblink (DWHD1) should at some time in the future be changed so it points at the production instead of the development server (DWHD1 should become DWHP1). This could mean changing numerous queries by hand after importing in the production server.
I would rather like that this could be accomplished by changing a configuration item or something like that. Is there an easy way to accomplish this in APEX 3.0 by using a 'global variable' or..?
regards
Martin
Message was edited by:
mjb001

This can be done only if you create dynamic queries. A better way to solve this is not to
include any database links in your reports. Use Views and point them to a database.
Denes Kubicek

Database link works for OS user "oracle" but not for other clients

My DBA connects as user1 to db1 and successfully queries over database link db2.
[oracle@linux19 ODA]$ sqlplus user1/****@db1
SQL*Plus: Release 11.2.0.3.0 Production on Fri Apr 12 07:39:49 2013
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> SELECT * FROM DUAL@db2;
D
XI log in from a Windows XP client and test the same database link with a ORA-12154 result.
C:\>sqlplus user1/****@db1
SQL*Plus: Release 11.2.0.1.0 Production on Fri Apr 12 11:18:18 2013
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> SELECT * FROM DUAL@db2;
SELECT * FROM [email protected]
ERROR at line 1:
ORA-12154: TNS:could not resolve the connect identifier specifiedI can create and successfully use database links by including the full TNS entry in the USING string.
What are some possible causes for the different results?
What additional information might I supply to help troubleshoot?
Thanks very much.
- Doug
Edited by: enquad on Apr 12, 2013 2:56 PM
changed "database link db1" to "database link db2" per comments by SB
Edited by: enquad on Apr 12, 2013 3:00 PM
Changed "user" to "OS user" in subject for clarity

enquad wrote:
Sorry gentlemen and SB, but my question is still not answered. It is a new question, which I have not found answered elsewhere.
To summarize:
SB97025 informs me that db1 is not a database link, but I never said that it was. It is the second database (anonymized as "db2") that is connected to through the database link "db2.mycompany.net".
SB97025 also wonders intriguingly if my DBA and I are we really connecting to the same database when we each connect to user1 on db1. Perhaps the Oracle server and my PC have TNSNAMES.ORA files that lead us to different databases for the same TNS alias? I do not believe this is the case, because my DBA created that user1 and that database link in the db1 database specifically for the purpose of doing this test and I see that same link when I connect to user1 on db1. Unless my DBA is spoofing me by creating user1 in two different databases - only one of which contains a working dblink named db2.mycompany.net - just for the purpose of throwing me off, I would have to conclude that he and I are actually connecting to the same database.There is no reason to "believe" (or not) that "this is the case". The entire point of SB's comment on that was to get you to verify. President Reagan famously said "trust but verify". He never worked as a DBA. I say "don't trust, just verify".
Obviously something is different. And at this point the most likely and easiest to confirm is that you and your DBA really are connecting to the same database, on the same host server, using the same link. And at this point all we really have is to trust your DBAs statement.
>
Ed Stevens reminds me that db1 is acting as a client to db2 and so the solutions to the ORA-12154 are the same as for any client connection as listed on his blog (which I had already read), none of which solve my problem. Rembember, the DBA can use the database link, so by whatever means the TNS lookup is happening when he uses it, the correct connection description is being found. The question is not "why does this stinkin' database link not work"? It does work for the DBA.
Pierre wants to make sure I know that it is the Oracle server's TNSNAMES file that is the important thing, not my client's TNSNAMES file, which is true but not relevant to my problem and I was never so naive. He also says that I could try creating a database link by including the full TNS entry in the USING string, which does work as I had already mentioned in my original post.
Amar asks if my DBA can: sqlplus username/password@db2.
The answer is yes. The dba can use SQL*Plus to connect to db2 from the server hosting db1 and can connect to db1 from the server hosting db2. There is almost nothing my DBA cannot do.
None of the posters addressed the key information in my post, which was the different result my DBA and I get when using the same database link in the same schema on the same database. That AND the fact that my DBA is logged on to Linux Oracle serve as user "oracle" and I am logged in to my PC. Why should it matter to a database link which computer is running SQL*Plus or who the OS user is?
Also the GLOBAL_NAMES parameter is set to FALSE.
- Doug

Database link from one Oracle database to another

Hi everyone!
I have 2 databases. I need to create a database link to copy a table from one of the database to another.
Both of them are Oracle 10g v2
Please advice me on how can I go about it.
I am trying to avoid import and export.
What are the options left to me?
Thanks

user5160274 wrote:
Hi Kanchana,
I am using Oracle 10g/Windows Server 2008. I have created a dabaselink. The link works perfectly fine. I want to copy the table (Oracle 11g) from remote server in to my database. It is ongoing process ie, it has to be scheduled and I want the updated rows to be copied in to my database on a daily basis. Please help me out.
Eagerly awaiting for your response.
Regards
Narayanan NAnd once again a new member of the forum, on their very first post, goes on an archeological dig and tries to raise the dead. This thread is well over a year old. You should have started your own thread for your own issue. You say you have created a link and it works, so whatever your problem is, it is NOT even related to the question the OP raised.
At exactly what point are you unsure about the process? Scheduling a processes? The command to use? Exactly what have you tried? What results do you have so far?.
Please, start a new thread explaining your issue.
Moderator --- please lock this thread.

How to create database link between 2 servers to exports schemas

Could any one please give Steps to create database link between 2 servers (linux) to exports schemas like AR, INV, GL.......etc

Hi Mouni,
As i suggest above, please use the REMAP_SCHEMA parameter, so that you can create those objects which are getting created in the Apps Schema in the XBSI schema, I have already provided the syntax above.
ORA-31684: Object type VIEW:"XBSI"."XBSI_ORDER_LINE_INFO_V" already exists
ORA-31684: Object type VIEW:"XBSI"."XBSI_SERIAL_NO_V" already exists
ORA-31684: Object type VIEW:"XBSI"."XBSI_ONHAND_BALANCES" already exists
ORA-31684: Object type VIEW:"XBSI"."XBSI_PURCHASE_ORDERS" already exists
ORA-31684: Object type VIEW:"XBSI"."XBSI_ORDER_HEADER_INFO_V" already exists
ORA-31684: Object type VIEW:"XBSI"."XBSI_ORGANIZATION_ITEMS" already exists
ORA-31684: Object type VIEW:"XBSI"."XBSI_PE_FIND_RESULT" already exists
You are facing these errors as you have already done the import, and when you try to re-import it says those objects are already available. If this fresh import, Please drop the the new user you have already created in the Datawarehouse instance, and recreate the User and start a fresh import.
Hope this help!
Thanks &
Best Regards,

Import database links

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